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
Directed by: Henry Hathaway
Starring: John Wayne, Dean Martin, Martha Hyer, Michael Anderson Jr.
Genres: Western
Factual error: As John Wayne walks back into the house after Martha Hyer drives away, the curtains on the window are seen to be flour sacks with "Gold Medal Enriched Flour" printed on them."Enriched Flour" was not created until the 1940's. (00:24:05)
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.