Who is Lillian Hellman from Dorothy Parker: What Fresh Hell Is This? and what is their importance?

Hellman met Dorothy while they were working in Hollywood. The two women could not have been more different, yet they formed a love-hate friendship that lasted through the end of Dorothy's life. Hellman was a woman of spirit and independence, which were traits she and Dorothy shared. They both embraced feminist sensibilities before it was fashionable to do so. During the era of Dorothy's extraordinary fame, no one had yet heard of Hellman, but when Dorothy's fame began to decline later in her life, the tables turned and it was Hellman who was garnering all the praise.