The Grapes of Wrath is a 1940 American drama film directed by John Ford. It was based on John Steinbeck's 1939 Pulitzer Prize-winning novel of the same name. The screenplay was written by Nunnally Johnson and the executive producer was Darryl F. Zanuck.

John Martin Feeney, known professionally as John Ford, was an American film director and producer. He is regarded as one of the most important and influential filmmakers during the Golden Age of Hollywood, and was one of the first American directors to be recognized as an auteur. In a career of more than 50 years, he directed over 140 films between 1917 and 1965, and received six Academy Awards including a record four wins for Best Director for The Informer (1935), The Grapes of Wrath (1940), How Green Was My Valley (1941), and The Quiet Man (1952).