Continuity mistake: In the overheard view of the dog grooming the cat, you can see there is nothing beside them, but in the next shot a blue ribbon suddenly appears.
Continuity mistake: When Spike grabs the bomb (painted as an apple) from the cockerel, he takes a bite out of it. You can see that when Spike is about to eat it, the eaten part of the bomb is facing his mouth, but in the next shot the eaten part is now facing downwards.
Continuity mistake: When Yosemite Sam is doing his speech in the stand at the start of the cartoon, you can see beside him there is a stand with a jug and a glass next to it. But when we see Sam from behind in the next shot, the glass has disappeared.
Continuity mistake: After Tom says goodbye to his friends, he goes to sleep on the window ledge. At this point, you can see it's night time, but when we see him sleeping from inside the house in the next shot, it is daylight outside.
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)