Born Yesterday is a 1950 American romantic comedy-drama film directed by George Cukor, based on the 1946 stage play of the same name by Garson Kanin. The screenplay was credited to Albert Mannheimer. According to Kanin's autobiography, Cukor did not like Mannheimer's work, believing it lacked much of the play's value, so he approached Kanin about adapting a screenplay from his own play. Because of legal entanglements, Kanin did not receive screen credit.