The Criterion series has been great about producing the best cover art to go with their new releases. The film stars Jack Benny and Carole Lombard (one of the great comediennes who died in a plane crash shortly before it came out), as part of a theater troupe that has to imitate the Nazis in order to get out of Poland. Considered controversial at the time of its release, both for its satire (remember, the Nazis were currently occupying at the time) and Lombard's recent death, the movie found new life soon after and is now considered one of the best of director Ernst Lubitsch's career. It's a great movie, and you should definitely check it out.
Original Trailer from 1942: