Humphrey Bogart his latest work was followed by Casablanca (1942), The Big Sleep (1946), and Key Largo (1948). He also formed his own production company, and the next year made The Treasure of the Sierra Madre (1948). Bogie won the best actor Academy Award for The African Queen (1951) and was nominated for Casablanca (1942) and as Captain Queeg in The Caine Mutiny (1954), a film made when he was already seriously ill.