Rio Bravo (1959)

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.

Continuity mistake: When the sheriff goes to the hotel bar and talks to "Feathers", she picks up a bowl and then the camera angle changes and the bowl is back in the corner. Also, the shot glasses they use keep changing positions. They're a few inches apart then a foot apart, then close again. (01:00:00)

Continuity mistake: In the film's climax, Ricky Nelson is shooting out a window. A bullet hits on the frame and gouges the wood. In the next camera shot of Ricky the gouge is gone and the following shot, it is back.

John T. Chance: Sorry don't get it done, Dude. That's the second time you hit me. Don't ever do it again.

John T. Chance: Got any new men with you, Pat?
Pat Wheeler: Nah, nobody 'cept Colorado, here.
John T. Chance: Where'd you take him on?
Pat Wheeler: Fort Worth.
John T. Chance: What does he do?
Colorado Ryan: I speak English, sheriff. If you wanna ask me.

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.