" It is possible that one of the seven other major studios might have bought and made a movie from Everybody comes to Rick's, an unproduced play about a cynical American who owns a bar in Casablanca. (One producer at M-G-M, Sam Marx, did want to buy the play for $5.000, but his boss didn't think it was worth the money.) It wouldn't have been the same movie, not only because it would have starred Gary Cooper at Paramount, Clark Gable at M-G-M, or Tyrone Power at Fox but because another studio's style would have been more languid, less sardonic, or opulently Technicolored. "

― , Round Up the Usual Suspects: The Making of Casablanca--Bogart, Bergman, and World War II