This Spanish Earth, 1937

About the anti-fascist resistance during the Spanish Civil War. Narration first done by Orson Welles, but overdubbed by Ernest Hemingway; music by Virgil Thompson; written by a whole mess of people:
Prudencio de Pereda
Spanish adaptation (uncredited)
John Dos Passos
English narration (part one)
Lillian Hellman
story (uncredited)
Ernest Hemingway
English narration (part two)
Joris Ivens
uncredited
Archibald Macleish
story (uncredited)
More from IMDB:
You know, a bunch of third-raters.