Character mistake: The 4 brothers have just rode into town and are securing their horses. On the flag pole in the background the Texas flag is upside down. Note: The correct way is white flies on top and red on bottom.
The Sons of Katie Elder (1965)
1 character mistake - chronological order
Directed by: Henry Hathaway
Starring: John Wayne, Dean Martin, Martha Hyer, Michael Anderson Jr.
Genres: Western
Factual error: In the final gunfight in Hasting's store, John Elder fires his six-shooting Colt to a total of thirteen or fourteen times, without requiring - or doing any - reloading whatsoever.
Bud Elder: I'm going with you. I can draw pretty fast. We can be famous - like the Dalton Brothers.
John Elder: They're famous - but they're just a little bit dead. They were hung.
Trivia: This movie marked the return of John Wayne to work after having a cancerous lung removed nearly 18 months before. He insisted on doing all his own stunts to show the public that the illness hadn't slowed him down.