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: After Colorado tells the sheriff what the music is about, the sheriff goes into the jail and sits on the desk. He sits on the brim of his hat on the desk. In the next shot his hat has moved away and in on the inkwell.
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.
Continuity mistake: When the sheriff is talking to Wheeler at the bar, they move to a table and the sheriff pulls down the shade. As they talk the camera angle changes and so does the bottom of the shade. Now you see the window sill. (00:29:00)
Other mistake: When Wheeler is walking down the street, the view is from behind a man with a rifle at a window. When he shoots it is obvious the rifle was pointing to the far right of Wheeler. (00:44:00)
Continuity mistake: The sheriff, Carlos and wife and Feathers are in the back room. The sheriff asks Feathers if she was sorry she missed the stage. When he does, Carlos' wife turns her head to look at Feathers then turns back to the right. Immediately after she does that, the scene switches angles and she is shown turning her head to the right again.
Other mistake: When the Mexican girl yells for help she is only a couple of rooms from where Chance is yet Chance runs downstairs to rescue her.