- Of Mice And Men (1939)
Based on the novel by John Steinbeck, Copland wrote the score to the film adaptation of Of Mice and Men, directed by Lewis Milestone and produced by Hal Roach.
- The Red Pony (1948)
The Red Pony was a 1948 film adapted from a John Steinbeck novel and was directed by Lewis Milestone. Copland later arranged his score into a concert suite.