Casablanca: easy to enter, but much harder to leave, especially if you're wanted by the Nazis. Such a man is Resistance leader Victor Laszlo (Paul Henreid), whose only hope is Rick Blaine (Humphrey Bogart in one of his most memorable roles), a cynical American who sticks his neck out for no one - especially Victor's wife, Ilsa (Ingrid Bergman), the ex-lover who broke his heart.

Ilsa offers herself in exchange for Laszlo's transport out of the country and bitter Rick must decide what counts more - personal happiness or countless lives hanging in the balance.

Winner of three Academy Awards including "Best Picture," Casablanca remains one of Hollywood's greatest treasures 71 years after it first lit up the screen.