Continuity mistake: In a saloon, Moe and Curly are playing poker with Longhorn Pete, the proprietor. Among Curly's five cards are an ace of hearts and an ace of diamonds. Moe's cards include an ace of spades and an ace of clubs. They pass some of the cards to each other under the table in the hope that one of them will wind up with all four aces. When their cards are shown again, Curly and Moe each have an ace of spades and ace of clubs. The ace of hearts and ace of diamonds have disappeared.
Continuity mistake: When Stan, Oliver and Mary are running away from Mickey and Lola in the saloon, Stan shuts the security gate on Mickey and you can see that Mickey just runs up to the gate and stops, but in the next shot, Mickey's head is now through the gate.