1930: The American economy is in a downward spiral after October 29, 1929 stock market collapse. By the end of the year, more than 4.5 million will be out of work and the Great Depression would take hold.

Today: The American economy is experiencing an unprecedented economic growth, seemingly without end. With a carefully regulated stock market, unemployment is very low.

1930: Sound movies are still a novelty, with the full impact yet to be seen. Theaters are the only places to see movies. While early prototypes of televisions have been made, radio is the primary form of home entertainment.

Today: Movies can be seen in a variety of places, not just movie theaters. Video, DVD, and other technology can be used to view movies in the home and on the go. There is uncertainty about how interactive games and computers will affect the film industry.

1930: Most people travel...