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Back to the Future Quotes

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Back to the Future Summary

Back to the Future is a 1985 film about time travel. After traveling back to 1955, Marty McFly accidentally interferes with his parents' courtship and must make them fall in love... or else he will never be born.

Directed by Robert Zemeckis. Written by Robert Zemeckis and Bob Gale.

Meet Marty McFly. He's broken the time barrier. Busted his parents' first date. And, maybe, botched his chances of ever being born. Taglines

1 Marty McFly
2 Doc Brown
3 Biff Tannen
4 Others
5 Dialogue
6 Taglines
7 Cast
8 See Also
9 External links

Marty McFly

[On the phone to Doc] Damn, I'm late for school!
Jesus Christ, Doc, you disintegrated Einstein!
Wait a minute, Doc. Are you telling me that you built a time machine... out of a DeLorean?!
[As Doc Brown dies] NOOOOOOOO!!!!! BASTARDS!!!!
[Being pursued by the Libyan terrorists] Let's see if you bastards can do 90!
So, you're my Uncle Joey. Better get used to these bars, kid.
Doc, I'm from the future. I came here in a time machine that you invented. Now I need your help to get back to the year 1985.
Whoa, this is heavy!
Listen, George, if you do not ask Lorraine out then I'm gonna regret it for the rest of my life.
(Struggling with a Pepsi bottle) God, how do you... (George McFly opens it with ease on a bottle opener)
Well you're not gonna be picking a fight, Dad... Dad... Daddy-o!
If you put your mind to it, you can accomplish anything.
All right. This is an oldie, but, uh... well it's an oldie where I come from.
I guess you guys aren't ready for that yet. But your kids are gonna love it.
Oh, and one more thing, if you guys ever have kids and one of them, when he's eight years old, accidentally sets fire to the living room rug - go easy on him.
Damn it, Doc! Why did you have to tear up that letter. If only I had more time... Wait, a minute, I got all the time I want! I got a time machine! I could just go back early and warn him. All right. Let's see, ten minutes ought to do it. Time circuits on, Flux Capacitor... fluxing, engine running, all right! [the car dies]
[Upon arriving in 1985] Everything looks great!

Doc Brown

Great Scott!
Slow Down!!
The way I see it, if you're gonna build a time machine into a car, why not do it with some style?
Good evening. I'm Doctor Emmett Brown and I'm standing here in the parking lot at Twin Pines Mall. It is Saturday morning, October 26, 1985, 1:18 A.M. and this is temporal experiment number one. Please note that Einstein's clock is in precise synchronization with my control watch.
If my calculations are correct, when this baby hits eighty-eight miles per hour, you're gonna see some serious shit.
Ha! What did I tell you?! EIGHTY-EIGHT MILES PER HOUR!!! The temporal displacement occured exactly 1:20 AM and zero seconds!
Einstein's clock is exactly one minute behind mine and still ticking!
First, you turn the time circuits on. This one tells you where you're going. This one tells you where you are. This one tells you where you were. You input your destination time on this keypad. Say you want to see the signing of the Declaration of Independence [Jul. 4, 1776] or witness the birth of Christ [Dec. 25, 0000]. Here's a red-letter date in the history of science: November 5, 1955. Yes! Of course! November 5, 1955! That was the day I invented time-travel. I remember it vividly. I was standing on the edge of my toilet hanging a clock, the porcelain was wet, I slipped, hit my head on the sink, and when I came to I had a revelation! A vision! A picture in my head! A picture of this! This is what makes time travel possible: the flux capacitor! It's taken me nearly thirty years and my entire family fortune to realize the vision of that day. My God, has it been that long? Things have certainly changed around here. I remember when this was all farmland as far as the eye could see! Old man Peabody owned all of this! He had this crazy idea about breeding pine trees.
Oh my god... they found me. I don't know how, but they found me. RUN FOR IT MARTY!
My God. Do you know what this means? It means that this damn thing doesn't work at all!
1.21 GIGAWATTS!!!
I'm sure that in 1985, plutonium is available in every corner drug store, but in 1955 it's a little hard to come by. Marty, I'm sorry, but I'm afraid you're stuck here!
(after reading the flyer) This is it! This is the answer! It says here that a bolt of lightning is going to strike the clock tower at precisely 10:04 PM next Saturday Night! If we could somehow... harness this lightning; channel it into the Flux Capacitor, it just might work. Next Saturday night, we're sending you back to the future!
[pointing at a poster for a dance] Look! There's a rhythmic ceremonial ritual coming up!
Please excuse the crudity of this model as I didn't have time to build it to scale or paint it.
[looks at his watch] Damn! Where is that kid! [looks at another watch] Damn! [and another] Damn, damn!
Don't worry. As long as you hit that wire with the connecting hook at precisely 88 miles an hour, the instant the lightning strikes the tower... everything will be fine!
It works! Ha, ha, ha, ha, ha! IT WORKS! I finally invent something that works. Somehow, we've gotta sneak this back to my laboratory. We gotta get you home!
You're not thinking fourth dimensionally!

Biff Tannen

Hey, McFly!
Well looky what we have here.
(to Marty) Since you're new here, I'm gonna cut you a break... today. So why don't you make like a tree... and get outta here!
(1985 Biff) My insurance? It's your car! Your insurance should pay for it, hey I wanna know who's going to pay for this? I spilled beer all over when that car smashed into me, who's going pay my cleaning bill? And where's my reports?
(1955 Biff) You got my homework finished, McFly?
Hello? Hello? Anybody home, huh, Think, McFly! Think! I gotta have time to get it retyped. Do you realize what what would happen if I handed in my reports in your handwriting? I'll get fired. You wouldn't want that to happen would ya? WOULD YA?!
Not too early, I sleep in Saturday/Sunday...oh, McFly your shoe's untied! Don't be so gullible, McFly!
(1985 Biff) Well, what are you looking at, butthead? Say "hi" to your mom for me.
What are you looking at, Butthead?

Others

Campaign van (in 1985): Re-elect mayor Goldie Wilson! Progress is his middle name. Mayor Wilson's progress platform means more jobs, better education, bigger civic improvements and lower taxes! On election day, cast your vote for a proven leader...
Campaign car (in 1955): Re-elect mayor Red Thomas! Progress is his middle name. Mayor Thomas' progress platform means more jobs, better education, bigger civic improvements and lower taxes! On election day, cast your vote for a proven leader...
Old Man Peabody: MY PINE, why you... [shoots time machine, but misses, hitting mailbox instead] You space bastard! YOU KILLED MY PINE!!!
Jukebox in Lou's Cafe: (Singing) Raised in the woods so's he knew every tree, kilt him a b'ar, when he was only three. Davy, Davy Crockett, king of the wild frontier!
George: Lou, gimme a milk, chocolate!
George: [to Lorraine] I'm your density. [Pauses, checks note]...destiny.
Lorraine: "Marty". Such a nice name.

Dialogue

Marty: [After being blown backwards by a large speaker] You know, Doc, you left your equipment on all week.

Doc Brown: My equipment? That reminds me Marty, you'd better not hook up to the amplifier. There's a slight possibility of overload.

Marty: Yeah... I'll keep that in mind.

Jennifer: Okay, come on, I think we're safe.

Marty: You know, this time it wasn't my fault. The Doc said all his clocks were twenty-five minutes slow -

Mr. Strickland: "Doc"!? Am I to understand you're still hanging around with Dr. Emmett Brown, McFly? [clicks with his mouth, gives Jennifer a tardy slip] Tardy slip for you, Miss Parker. [gives Marty one, too] And one for you, McFly. I believe that makes four in a row. Now let me give you a nickel's worth of free advice, young man. This so-called Dr. Brown is dangerous, he's a real nut case. You hang around with him, you're gonna end up in big trouble.

Marty: [smart-alecky] Oh, yes, sir.

Mr. Strickland: [pushes Marty a little bit] You got a real attitude problem, McFly. You're a slacker! You remind me of you father when he went here. He was a slacker too.

Marty: Can I go now, Mr. Strickland?

Mr. Strickland: I noticed your band is on the roster for the dance auditions after school today. Why even bother, McFly? You don't have a chance, you're too much like your old man. No McFly ever amounted to anything in the history of Hill Valley!

Marty: Yeah, well, history is gonna change.

Woman: Save the clock tower! Save the clock tower! Mayor Wilson is sponsoring an initiative to replace that clock. Thirty years ago, lightning struck that clock tower and the clock hasn't run since. We at the Hill Valley Preservation Society think it should be preserved exactly the way it is as part of our history and heritage -

Marty: Here you go, lady. Here's a quarter.

Woman: Thank you. Don't forget to take a flyer. (going off into distance) Save the clock tower!...

Linda: Hey, Marty. I'm not your answering service. While you were outside pouting about the car; Jennifer Parker called you twice.

Lorraine: I don't like her, Marty. Any girl who just calls up a boy is just asking for trouble.

Linda: Oh, Mom, there's nothing wrong with calling a boy.

Lorraine: I think it's terrible! Girls chasing boys. When I was your age I never chased a boy or called a boy or sat in a parked car with a boy.

Linda: Then how am I supposed to ever meet anybody?

Lorraine: Well, it will just happen, like the way I met your father.

Linda: That was so stupid! Grandpa hit him with the car.

Lorraine: It was meant to be. Anyway, if grandpa hadn't hit him, then none of you would have been born.

Linda: Yeah, well, I still don't see what Dad was doing in the middle of the street.

Lorraine: What was it, George? Birdwatching?

George: What Lorraine? What?

Lorraine: Anyway, your grandfather hit him with the car and brought him into the house. He seemed so helpless, like a little lost puppy, and my heart just went out to him -

Linda: Yeah, Mom, we know! You told us the story a million times. You felt sorry for him so you decided to go with him to the Fish Under the Sea Dance.

Lorraine: No, No. It was the Enchantment Under the Sea Dance. Our first date. I'll never forget it. It was the night of that terrible thunderstorm, remember, George? Your father kissed me for the very first time on that dance floor and it was then that I realized that I was going to spend the rest of my life with him.

Doc Brown: Ha! What did I tell you?! 88 miles per hour! The temporal displacement occurred exactly 1:20 AM and zero seconds!

Marty McFly: Jesus Christ, Doc! You disintegrated Einstein!

Doc Brown: Calm down Marty. I didn't disintegrate anything. The molecular structure of both Einstein and the car are completely intact!

Marty: Then where the hell are they?

Doc Brown: The appropriate question is when the hell are they! You see, Einstein has just become the world's first time traveler! I sent him into the future! One minute into the future to be exact! And at precisely, 1:21 A.M. and zero seconds, we shall catch up with him and the time machine!

Marty: Wait a minute, wait a minute Doc, uh, are you telling me you built a time machine... out of a DeLorean?!

Doc Brown: The way I see it, if you're going to build a time machine into a car, why not do it with some style? Besides, the stainless steel construction made the flux dispersal...(watch beeps) Look out! (time machine comes back)

Marty: Uh, this is heavy duty, Doc. This is great. Uh, does it run like on, on regular, unleaded gasoline?

Doc Brown: Unfortunately, no. It requires something with a little more kick; Plutonium!

Marty: Uh, Plutonium... Wait a minute, are you telling me that this sucker is nuclear?!

Doc Brown: Hey! Hey, hey, keep rolling, keep rolling there! No, no, no, no, no. This sucker's electrical, but I need a nuclear reaction to generate the 1.21 gigawatts of electricity I need.

Marty: Doc, you don't just walk into a store and buy plutonium! Did you rip that off?

Doc Brown: [waving arms] Of course! From a group of Libyan nationalists. They wanted me to build them a bomb, so I took their plutonium and in turn gave them a shoddy bomb casing full of used pinball machine parts!

Peabody's wife: [Upon seeing the DeLorean] Lord, what is it, what is it, Paw?

Old Man Peabody: Looks like a airplane... without wings!

Sherman Peabody: That ain't no airplane. Look! [shows father "Tales from Space" comic book]

Marty: Sorry about your barn. (Old Man Peabody tries to shoot him)

Sherman Peabody: It's already mutated into human form, shoot it!

Old Man Peabody: Take that, you mutated son of a bitch!

Coffee bar manager (Lou Carruthers): Hey, kid! What did you do, jump ship?

Marty: Wha?

Coffee bar manager (Lou Carruthers): Well what's with the life preserver?

Marty: Do you know where -

Coffee bar manager (Lou Carruthers): Are you gonna order something, kid!

Marty: Uh, yeah. Give me a, give me a Tab.

Coffee bar manager (Lou Carruthers): "Tab"? I can't give you a tab unless you order something!

Marty: All right, just give me a Pepsi 'Free'.

Coffee bar manager (Lou Carruthers): If you want a Pepsi, pal, you've gonna to pay for it!

Marty: Look, just give me something without any sugar in it, okay.

Coffee bar manager (Lou Carruthers): (muttering) Something without sugar...

[Lou plunks down a cup of coffee in front of Marty]

Biff: Hey, McFly! [both George and Marty turn around] What do you think your doing?

Marty: [to himself] Biff.

Biff: Hey, I'm talking to you McFly, you Irish bug!

George: Oh, hey, Biff. Hey, guys. How are you doin'?

Biff: Do you got my homework finished, McFly?

George: Well, I figured since it wasn't due till Monday -

Biff: Hello? Hello? Anybody home, huh, Think, McFly! Think! I gotta have time to recopy it. Do you realize what what would happen if I handed in my homework in your handwriting? I'll get kicked out of school. You wouldn't want that to happen would ya? WOULD YA?!

George: Of course not, Biff. Now I wouldn't want that to happen.

Biff: [notices Marty staring at him] Well, what are you looking at, butthead!

[Marty is staring at George after Biff and his gang finish bullying him.]

George: What?

Marty: You're George McFly.

George: Yeah. Who are you?

Goldie Wilson: Say, why do let those boys push you around like that for?

George: Well, they're bigger than me.

Goldie Wilson: Stand tall, boy. Have some respect for yourself. Don't you know if you let people walk over you now, they'll be walking over you for the rest of your life! Look at me. You think I'm gonna spend the rest of my life in this slop house?

Coffee bar manager (Lou Carruthers): Watch it, Goldie!

Goldie Wilson: No, sir! I'm gonna make something of myself. I'm going to night school and one day I'm gonna be somebody!

Marty: That's right, he's gonna be mayor!

Goldie Wilson: Yeah, I'm gonna... mayor. Now that's a good idea. I could run for mayor.

Coffee bar manager (Lou Carruthers): A colored mayor, that'll be the day.

Goldie Wilson: You wait and see, Mr. Carruthers. I will be mayor! I'll be the most powerful mayor in Hill Valley and I'm gonna clean up this town.

Coffee bar manager (Lou Carruthers): Good. You can start by sweeping the floor.

Goldie Wilson: "Mayor Goldie Wilson". I like the sound of that.

Marty: [half asleep in bed] Mom? Mom is that you?

Lorraine: There, there now. Just relax. You've been asleep for almost nine hours now.

Marty: I had a horrible nightmare. I dreamed I went back in time. It was terrible.

Lorraine: Well your safe and sound now back in good ole' 1955.

Marty: [wakes up] 1955! Ahh! Your my, m... Your my m...!

Lorraine: My name is Lorraine. Lorraine Banes.

Marty: Yeah! But your so, uh, your so... thin!

Lorraine: Just relax, Calvin. You got a big bruise on your head.

Marty: Where are my pants?

Lorraine: Over there. On my hope chest. I've never seen purple underwear before, Calvin.

Marty: Calvin? Why do you keep calling me Calvin?

Lorraine: That's your name isn't it? Calvin Klein? It's written all over your underwear. Oh, I guess they call you "Cal."

Marty: No, actually people call me Marty.

Lorraine: Oh. Please to meet you, Calvin... Marty... Klein.

Lorraine: Do you have a television set?

Marty: Well, yeah, you know we have two of them.

Milton Baines: Wow! You must be rich.

Stella Baines: Oh, honey, he's teasing you. Nobody has two television sets.

Marty: Hey! Hey, I've seen this one! This is a classic. This is where Ralph dresses up as a man from space.

Milton Baines: What do you mean you've seen this? It's brand new.

Marty: Yeah, but I saw it on a... re-run.

Milton Baines: What's a re-run?

Marty McFly: You'll find out.

Marty: Do you know where Riverside Drive is?

Sam Baines: It's at the other end of town. A block past Maple. East end of town.

Marty: Wait, a block past Maple. That's John F. Kennedy Drive.

Sam Baines: Who the hell is John F. Kennedy?

Lorraine: Mother, with Marty's parents out of town, don't you think he oughta spend the night? I mean, after all, Dad almost killed him with the car.

Stella Banes: That's true, Marty. I think that maybe you should spend the night. I think you're our responsibilty.

Marty: Ah, jeez, I don't know...

Lorraine: And he can sleep in my room. [squeezes Marty's knee]

Marty: [jumps up from the table] I gotta go! Thank you very much. You've all been great. I'll see you all later... much later. [leaves]

Stella Banes: He's a very strange young man.

Sam Banes: He's an idiot. Comes from upbringing. Parents are probably idiots too. Lorraine, if you ever have a kid who acts that way I'll disown you.

Marty: Look, Doc, you gotta help me. You're the only one who knows how your time machine works.

Doc Brown: Time machine? I haven't invented any time machine.

Marty: Okay. Okay, I'll prove it to you. Look at my driver's license. Expires: 1987. Look at my birth date, for crying out loud, I haven't even been born yet! Oh, and look at this picture. It's my brother, my sister and me. Look at her sweatshirt, Doc, class of 1984.

Doc Brown: Pretty mediocre photographic fakery; they cut off your brother's hair!

Marty: Listen, Doc, you got to believe me.

Doc Brown: Then tell me, Future Boy. Who's President of the United States in 1985?

Marty: Ronald Reagan.

Doc Brown: Ronald Reagan? The actor!? [chuckles in disbelief] Then who's vice-president, Jerry Lewis? I suppose Jane Wyman is the First Lady? And Jack Benny is Secretary of the Treasury!

[Looking at his future self on video]:

Doc Brown: What am I wearing?

Marty McFly: Oh this, this is a radiation suit.

Doc Brown: Radiation suit? Of course! Because of all the fallout from the atomic wars! This is incredible. A portable television studio! No wonder your president has got to be an actor, he has to look good on television.

Doc Brown: 1.21 GIGAWATTS!?! 1.21 gigawatts! Great Scott!!!

Marty: Wait... what the hell is a gigawatt?!

Note: Doc Brown pronounces the term "jigga-watt".

Marty: Sounds pretty heavy.

Doc Brown: Weight has nothing to do with it.

Marty: This is heavy, Doc.

Doc Brown: There's that word again, 'heavy'. Why are things so heavy in the future? Is there a problem with the Earth's gravitational pull?

Marty: What?

Doc Brown: Obviously your mother is amorously infatuated with you instead of your father.

Marty : Wait a minute, Doc. Are you trying to tell me my mom... has got the hots for me?

Doc Brown: Precisely!

Marty: Whoa, this is heavy.

Marty: Hey George. I've been looking all over for you. Remember that girl I introduced you to; Lorraine? What are you writing?

George: Uh, stories. Science fiction stories about visitors coming down to Earth from other planets.

Marty: Get out of town, I didn't know you did anything creative. Well, here let me read some -

George: Oh, no, no, no. I never, I never let anybody read my stories.

Marty: Why not?

George: Well, what if the didn't like them? What if they told me I was no good? I guess that might be hard for somebody to understand.

Marty: Uh, no. Not hard at all. So, anyway, George, about Lorraine. She really likes you. She told me to tell you that she wants you to ask her to the Enchantment Under the Sea Dance.

George: Really?

Marty: Oh, yeah! All you gotta do is go over there and ask her.

George: Whoa, like right here, right now in the cafeteria? What if she says "no?" I don't think I can take that kind of a rejection. Besides, I think she'd rather go with someone else.

Marty: Uh, who?

George: Biff.

[Marty in his radiation suit puts his headphones over the sleeping George's head and wakes him up with loud music by Edward Van Halen.]

George: Wh-who are you?

[Marty plays loud music again.]

Marty: Silence earthling! My name is Darth Vader. (heavy breathing) I am an extraterrestial from the planet Vulcan! [Gives Vulcan salute]

George: Last night, Darth Vader came down from planet Vulcan and told me that if I didn't ask Lorraine out that he'd melt my brain.

Marty: Okay George, let's just keep this brain melting stuff to ourselves, okay?

George: Oh yeah, right.

George: I don't know what I should say.

Marty: Well say anything, George. Say the first thing that comes to your mind.

George: Nothing's coming to my mind.

Marty: Jesus, George. It's a wonder I was ever born.

George: Hey you get your damn hands off her! Do you really think I oughta swear?

Marty: Yes, definitely. Goddammit George, swear!

George: (opens car door) Hey you, get your damn hands off...(sees Biff with Lorraine; Biff looks back at George) Oh.

Biff: I think you picked the wrong car, McFly.

Lorraine: George! Help me! Please!

Biff: Just close the door, McFly and walk away. (George looks on.) Are you deaf, McFly? Close the door, and beat it!

George: No Biff, you leave her alone!

Biff: All right, McFly (emerges from car). You asked for it...and now you're gonna get it! (George attempts to punch, but Biff blocks and twists his arm. George squirms in pain)

Lorraine: Biff, Biff, no! You'll break his arm. (Gets out of car and jumps Biff on his back) Biff, LEAVE HIM ALONE!

(Biff shoves Lorraine into the ground and laughs as he looks away from George, who is let go. An angry George balls his left hand into a fist. Biff looks back at George in time to see the fist connect with his face and gets knocked out.)

George: (gasps at having punched Biff, and offers his hand to Lorraine) Are you okay?

(Lorraine takes his hand and they walk back to the dance as kibitzers surround Biff.)

Female Student: Who is that guy?

Male Student: That's George McFly.

Female Student: That's George McFly?

Marty: Wait, you don't understand. You gotta play. If there's no music they can't dance. If they can't dance they can't kiss, if they can't kiss, they can't fall in love and I'm history!

Marvin Berry: Look kid, the dance is over, unless you know somebody that can play the guitar.

Male Student: (speaks to George during the dance) Hey George, heard you laid out Biff, nice going!

Female Student: George, have you ever thought of running for class president?

(Marty is about to go out of the back door when he chances upon his future parents)

Marty: Lorraine!

Lorraine: Marty, that was very interesting music.

Marty: Yeah.

Lorraine: I hope you don't mind, but George asked if he could take me home.

Marty: Well, that's great! (Touches Lorraine's chin with his finger) I had a feeling about you two.

Lorraine: (Blushes) I have a feeling too...

Marty: Listen, I got to go, but I just want to tell you that it's been...educational.

George: (Shakes Marty's hand) Marty, I want to thank you for all your good advice. I'll never forget it.

Lorraine: Marty, will we ever see you again?

Marty: I guarantee it. Well, good luck you guys. (Walks away, and turns back) Oh, and one other thing, if you guys ever have kids (Lorraine is agape with surprise), and one of them, when he's eight years old accidentally sets fire to the living room rug? Go easy on him.

Lorraine: (as soon as Marty is out of sight) Marty... such a nice name.

Marty: Doc!

Doc Brown: Huh?

Marty: I have to tell you about the future!

Doc Brown: Huh?

Marty: I have to tell you about the future!

Doc Brown: What!

Marty: On the night I go back in time you get - [The clock chimes 10:00] ...shot.

Marty: What about all that talk about screwing up future events? The space-time continuum?

Doc Brown: Well, I figured, what the hell!

(In the new dining room, over breakfast)

Linda: If Paul calls, tell him I'm working at the boutique late tonight.

Dave: First of all, I'm not your answering service. Second, someone named Greg or Craig called you just a little while ago.

Linda: Well, which one was it, Greg or Craig?

Dave: I don't know, I can't keep up with all of your boyfriends!

Marty: Hey! (Dave and Linda look at him) What the hell is this?

Linda: Breakfast.

Dave: What, you slept in your clothes again last night?

Marty: Yeah. What are you wearing, Dave?

Dave: Marty, (stands up) I always wear a suit to the office.

Jennifer (after Marty discovers his new truck): How about a ride, Mister.

Marty: Jennifer! Oh man, are you a sight for sore eyes. Let me look at you.

Jennifer: Marty, your acting like you haven't seen me in a week.

Marty: I haven't.

Jennifer: Is everything okay? Is everything going all right?

[Marty looks back at his parents]

Marty: Oh, yeah. Everything's great (as they are about to kiss, Doc Brown's time machine appears)

Doc Brown: Marty! You've got to come back with me!

Marty: Where?

Doc Brown: Back to the future.

[Doc opens a trash can]

Marty: Whoa, wait a minute, what are you doing, Doc?

Doc Brown: I need fuel. Go ahead, quick. Get in the car!

Marty: No, no, no, no, no, no, Doc. I just got here, alright, Jennifer's here, we're gonna take the new truck for a spin.

Doc Brown: Well, bring her along. This concerns her too.

Marty: Whoa, wait a minute, Doc. What are you talking about? What happens to us in the future? What, do we become assholes or something?

Doc Brown: No, no, no, no, no, Marty. Both you and Jennifer turn out fine. It's your kids, Marty. Something's gotta be done about your kids!

Marty: Hey Doc, you better back up, we don't have enough road to get up to 88.

Doc Brown: Roads? Where we're going, we don't need... roads.

Note: These lines are from a deleted segment of the "Darth Vader from Planet Vulcan" scene.

Marty: (As "Darth Vader") You, George McFly, have created a rift in the space-time continium!

George: I'm sorry, I didn't mean it!

Taglines

Meet Marty McFly. He's broken the time barrier. Busted his parents' first date. And, maybe, botched his chances of ever being born.
17 year old Marty McFly got home early last night. 30 years early.
Marty McFly just broke the time barrier. He's only got one week to get it fixed.
Marty McFly's having the time of his life. The only question is -- what time is it?
He was never in time for his classes... He wasn't in time for his dinner... Then one day... he wasn't in his time at all.
Bumping into your parents is no big deal unless you bump into them before you were born.