Black Jack, also known as Captain Blackjack, is a 1950 adventure film written and directed by Julien Duvivier and starring George Sanders, Herbert Marshall, Patricia Roc and Dennis Wyndham. Set on the Mediterranean, it tells the story of a man who does evil deeds. Although his conscience is awakened and he has fallen in love, escaping his past proves impossible. The English-language film was a co-production between France, Spain and the United States.