To Be Or Not To Be is a 1942 comedy film about a troupe of actors in Nazi-occupied Warsaw who use their abilities at disguise and acting to fool the occupying troops. It stars Carole Lombard, Jack Benny, Robert Stack, Felix Bressart , Lionel Atwill , Stanley Ridges and Sig Ruman .

The movie was adapted by Ernst Lubitsch (uncredited) and Edwin Justus Mayer from the story by Melchior Lengyel. It was directed by Lubitsch.

It was nominated for an Academy Award for Best Music, Scoring of a Dramatic or Comedy Picture. The film has been deemed "culturally significant" by the United States Library of Congress and selected for preservation in the National Film Registry.

The movie was released after actress Carole Lombard died in an airplane crash.

To Be Or Not To Be was remade in 1983 by Mel Brooks.