Directed by: Howard Hawks
Starring: John Wayne, Dean Martin, Angie Dickinson, Ricky Nelson
Other mistake: When Joe shoots the person at the beginning of the movie the character is played by Bing Russell (Kurt's father). Later in the movie when Dude is ambushed at the entrance to the town, they give a guy his hat to impersonate Dude - it's Bing Russell again, after he was killed off at the beginning and why Joe is arrested in the first place.
Suggested correction: The actor in that scene is not Bing Russell.
Continuity mistake: When Rick Nelson tells Angie Dickinson to throw the plant pot through the window to distract the gunmen who threaten John Wayne he seems to have had a hair cut between scenes as his sideburns are halved by the time he reaches the street and grow again later.
Feathers: How does a... how does a man get to be a sheriff?
John T. Chance: Gets lazy. Gets tired of selling his gun all over. Decides to sell it in one place.
Feathers: I'd say you made a poor sale.
John T. Chance: A lot of people around here'll agree with you.
Feathers: But... it's still a sale and it's too late to back out.