Casablanca is a 1942 American romantic drama film directed by Michael Curtiz and starring Humphrey Bogart, Ingrid Bergman, and Paul Henreid. Filmed and set during World War II, it focuses on an American expatriate (Bogart) who must choose between his love for a woman (Bergman) and helping her husband (Henreid), a Czechoslovak resistance leader, escape from the Vichy-controlled city of Casablanca to continue his fight against the Germans. The screenplay is based on Everybody Comes to Rick's, an unproduced stage play by Murray Burnett and Joan Alison. The supporting cast features Claude Rains, Conrad Veidt, Sydney Greenstreet, Peter Lorre, and Dooley Wilson.

Hans Walter Conrad Veidt was a German-British actor. He attracted early attention for his roles in the films Different from the Others (1919), The Cabinet of Dr. Caligari (1920), and The Man Who Laughs (1928). After a successful career in German silent films, where he was one of the best-paid stars of UFA, Veidt and his new Jewish wife Ilona Prager left Germany in 1933 after the Nazis came to power. The couple settled in Britain, where he took citizenship in 1939. Veidt subsequently appeared in many British films, including The Thief of Bagdad (1940). After immigrating to the United States around 1941, he was cast as Major Strasser in Casablanca (1942), his last film role to be released during his lifetime.