Revealing mistake: At the cave near the end, there are several scenes with the secretary of the interior. These scenes with the main actors appear to be filmed in front of the background as they cast shadows on the other film and the lighting is different. This was most likely done because of budget limitations.
Cheyenne Autumn (1964)
1 revealing mistake
Directed by: John Ford
Starring: Richard Widmark, Karl Malden, Carroll Baker, Sal Mineo
Factual error: The narrator mentions that the Cheyenne tribe split in half in northern Nebraska. The scenery would suggest otherwise, as there are no mountains that high in Nebraska.
Wyatt Earp: Say, you're the doctor around here. How come I always have to perform all the complicated operations?
Doc Holliday: You know I am a dentist, not a doctor. Wait until somebody shoot him in the teeth.