Continuity mistake: At the end of the film when all the women are dressed up after making clothes out of tablecloths, you can see the Italian woman riding in the front of the wagon. The shot changes and she's riding on the side looking at all the men and smiling. The shot changes again and she's back to the front.
Continuity mistake: When we see Nasty Canasta's drink, you can see there are holes on the counter next to the glass when the bartender puts two ice cubes in it. When Daffy Duck dares Nasty Canasta to drink it, the holes have disappeared.
Continuity mistake: Lt. Richard Tufts arrived at Capt. Quincy Wyatt's camp. A child walks up to him and starts checking his cavalry sword out. The position of the kid's hands keep changing between shots, and when Monk tells him he's the son of the captain, Tufts' hand is suddenly on the handle of the saber. (00:07:10)