Continuity mistake: When Dr. Sawyer is giving Kris the exam, during the part where Kris is doing the physical coordination test, we see Kris from Sawyer's point of view, and Sawyer is drumming his fingers. When the shot switches to Kris's, he is fingering his eyebrow. When it switches back, fingers drumming. Finally, when it switches back again, his hands are neatly folded in front of him.
Audio problem: As Lulu drops from the moon beam onto some books, the school house says "Or would you rather be a mule?" It pauses for a moment, and then you hear the school house begin singing about a mule as the camera cuts to a close up of the mule drawing in a book. But a split second before the cut, the school house begins his singing, and gets a couple words in before the camera cut. However you can see the school house’s mouth is not moving at this point. (00:04:05)Quantom X
Continuity mistake: When Jerry opens the door of the refrigerator, there is a piece of corn on the cob on a plate and next to it is a bowl of eggs. In the next shot, the eggs have become fruit.
Continuity mistake: When Tom is about to drop the iron on Jerry, he is holding some cheese on a piece of string in his left hand. When the iron drops on Tom's foot, he is no longer holding the string.
Other mistake: After the fade out, the "The End" board shows it as an "MGM Tom and Jerry Cartoon." The two stars were not in this short at all.
Audio problem: When Bugs says to the kid, "Cut it out, kid! Somebody will get hurt!", his mouth doesn't move.
Continuity mistake: When the dogs run away from the Mexican hairless dog after thinking she's a skunk, the Mexican dog's ears are pointing up but in the next shot they are pointing down.
Continuity mistake: When Tom is tip-toeing past the gate at the start of the cartoon, Spike is sleeping and you can see there is nothing around his neck, but in the next shot a dog collar has suddenly appeared.
Continuity mistake: When Butch points his pistol at Tom, you can see that the handle has nothing written on it, but in the next shot the words "Ajax" have appeared.
Continuity mistake: When Tom realises he is drinking sea water in the bucket Jerry gave him, he drops the bucket on the towel, but when he spits the water in the girl cat's face, the bucket is nowhere to be seen.
Continuity mistake: When Daffy finds the key to Suite 666, the shape of the keyhole is that of a normal key. In the next shot, it is round.
Continuity mistake: When the cat tries cut up the mouse with his knife and fork, the mouse says "Hey, wait a minute, pal!" and he is standing next to the salt and pepper pots, but in the next shot he is standing on the plate.
Continuity mistake: When the man picks up the sandwich that the ants have made, there is a cocktail stick with an olive on it. But when he takes a bite of the sandwich, the cocktail stick has gone.