Casablanca
“Studio publicity in 1941 claimed that Ronald Reagan and Ann Sheridan were scheduled to appear in this film, and Dennis Morgan is mentioned as the third lead. This was never the case, however, and the false story was planted, either by a studio publicist or a press agent for the three other actors, to keep their names in the press. Meanwhile George Raft was angling for the part with Jack L. Warner, but Hal B. Wallis had been assigned to search for what would be Humphrey Bogart’s next starring role. He wrote to Warner that he had found the next movie for Bogart, and the role was perfect for him. Nobody else was ever considered for the part.”
— Source: Internet Movie Database
Trivia