Continuity mistake: When Butch opens the door to steal the ham from the fridge, the handle is initially on the right hand side of the door, but when he opens it later on the handle has moved to the left hand side.
Continuity mistake: When Quacker shows Jerry the picture of the ugly duckling in his book, you can see the book is standing up, but when we see the picture in the next shot, the book is lying flat on the ground.
Continuity mistake: When Dale is reading the Fairy Tales book at the beginning, you can see behind him there is an acorn, a small twig and an empty beer bottle behind him. But when he picks up the acorn and twig to pretend fencing, the beer bottle is nowhere to be seen.
Continuity mistake: When Piggy is seated at the dinner table, there is a bowl of fruit with a yellow lid next to it, and Piggy has in front of him a plate with a spoon on one side and a knife and fork on the other. After Piggy's mother stops him from taking some fruit, we cut back to Piggy, and the bowl of fruit and yellow lid have disappeared, and he only now has a spoon by the plate.
Audio problem: When Elmer has his hat and coat taken off by the Hat and Coat Remover, he says "Hey! What is this?" but his mouth doesn't move.
Continuity mistake: When John comes home and finds his son's toys on the lawn, the red truck has a registration number on the back of it, but when John is speaking to Ethel in the next shot, the registration number has disappeared.
Continuity mistake: When Bugs leaves the bank after getting his carrot, you can see there is nothing on the wall next to the door. But when he says "Taxi!" in the next shot, a plaque saying "City Bank" appears from nowhere.