The Grapes of Wrath (1940) is an American drama film directed by John Ford. Based on John Steinbeck's 1939 Pulitzer Prize-winning novel of the same name, the film tells the story of the Joad family, a poor family of tenant farmers driven from their Oklahoma
From Wikipedia
The Grapes of Wrath is an American realist novel written by John Steinbeck and published in 1939. The book won the National Book Award and Pulitzer Prize for fiction, and it was cited prominently when Steinbeck was awarded the Nobel Prize in Literature in 1962.