Continuity mistake: The wad of money Briggs took from the man Jimmy's dad stole from was evenly folded in half, cupped in Briggs' palm, but at least one bill was protruding upward when he stood up. As Briggs was walking into the building, a rear view showed the money was no longer cupped in his palm but extended from both sides of his hand and was in disarray. (00:05:10)
Continuity mistake: While pointing his pistol at Matt Diggs, the Rabbi cocks the pistol's hammer. A split second later from another angle, the pistol's hammer is down.
Continuity mistake: When we see a close-up of the meter, there is a box saying "10 Centavos for One Hour." The words were not in the box in the previous shot.
Continuity mistake: Right before and during the ending shootout, the sky changes a few times, as does the sun angle.
Continuity mistake: At the beginning of the cartoon, Tom lifts a flower pot to reveal a cowering Jerry. But after Tom has caught Jerry with his lasso, he pulls him back but the flower pot is nowhere to be seen.
Continuity mistake: At the saloon, Jim brushes off Mr. Walsh and walks out on him. Walsh turns to Francie the bartender, who suddenly is holding the bottle that was undisturbed on the counter a moment before. (00:17:25)
Continuity mistake: Juliano and Joaquin are having their pictures taking celebrating the first earnings from their own gold pit. All of a sudden between shots, the photographer loses the cigarette behind his ear. (00:18:50)
Continuity mistake: When Bugs is performing his shooting stunt in the saloon, you can see the entrance behind Sam has nothing between it. When Sam tells Bugs he's missed, we cut to Bugs who says "Wait!" and then return to Sam, and this time there are doors between the entrance.
Continuity mistake: After Bills long stay at the Chinese drug den. He goes to the bar and Jane uses the crank mixer to mix a drink. 1st cut she's cranking forwards - then cut from behind her, she is cranking backwards - then cut to in front of her, and she's cranking forwards again. (01:06:15)
Continuity mistake: Cactus Jack's leather cowboy boots have block heels and spurs with rowels and jingle bobs. In quite a few shots throughout the movie, Jack's boots change to no-heel flat soles, and the spurs are missing, though we still hear the distinctive jangling of Cactus Jack's spurs.
Continuity mistake: There is no barn to the left of MacMasters' house (otherwise, it would be visible from the front porch), but when Albert runs from the side of the porch into the open, there is a barn. When Britt got home, there was a barn but it was not where it would have been when Albert was running from Jed's gang. (00:09:10 - 00:10:18)
Continuity mistake: The opening scene states the date as April 10th 1865, the day of the train station robbery. Siringo tells Vance at the school money-raising event that the robbery took place 8 weeks ago, but when Clint is buried at the end, his death is April 25th 1865, only 2 weeks after the robbery.
Continuity mistake: At the 23-minute mark, instead of two horses tied to the back of the wagon, there is only one. (00:23:00)
Continuity mistake: When Cagney jumps onto the train in a wide shot, the steel car at his back is visibly taller than the wooden car he is facing. In the following close-up, the steel car has morphed into a shorter wooden car, same height as the other.
Continuity mistake: David Hackett is talking business organizing ranch business while his brother Ed is leaning on the counter, gawking at the beautiful Clee and passing her cloth. He has his right arm up in the close-ups, but the left arm up in the wider shots. (00:04:55)