Casablanca is widely regarded as one of the greatest films ever made, but it would have never happened if it wasn’t for one forgotten film from 1938. Directed by Michael Curtiz and based on the play Everybody Comes To Rick’s, Casablanca was released in 1942, and though it wasn’t really expected to stand out, it went on to be nominated and win various awards and earn a spot in film history. Set in 1941, in the city of Casablanca, which at the time was controlled by the French, Casablanca introduced viewers to American expatriate and nightclub owner Rick Blaine (Humphrey Boggart) and his former lover Ilsa Lund (Ingrid Bergman).

https://screenrant.com/casablanca-movie-inspiration-algiers-hedy-lamarr/