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.
Continuity mistake: As the episode starts, Lulu is snoring in bed. The purple head board of her bed is in the light in such a way that it is diagonally lit up from the top left to bottom right. When the angle changes as she gets up, the lighting has flipped so the bottom part is lit rather than the top. There is also a window that suddenly appears in the wall by her bed that was not there in the previous shot. (00:01:05)
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 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 Jerry first becomes buff after drinking some of the milk and starts approaching Tom to beat him up, Tom sees a book and grabs it then hits Jerry. Before Tom grabs the book, it's yellow. When he grabs it, it's green.
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.
Continuity mistake: Bongo the bear, riding in a car of the circus train, looks out the window. There are four vertical bars on the window - but when seen from outside the train, it has six bars.
Continuity mistake: When Thomas uses a fishing rod to hoist himself up to Tweety's cage, you can see that Tweety is resting himself with his arm on the swing. But when we see Tweety in the next shot, his arm is on his chest.
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 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 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.
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.
Continuity mistake: When we see a man and woman sitting by a lake, the plate of pancakes on the picnic blanket moves from the left to the right between shots.
Continuity mistake: When Humphrey Bogart comes into the kitchen after being hit in the face by a coconut custard pie, the number of cream spots on his dinner jacket changes between shots.
Continuity mistake: When Pluto is by the radio in the music shop, there is a record player behind him which has three buttons on the side, but in the next shot the buttons have moved a few inches to the right.
Continuity mistake: When the cat places the tiny canary on to the plate, the salt and pepper pots on the table change positions between shots, and the cabinets in the background disappear. He also has a knife and fork in his hands, but after the canary says he's been sick, we return to the cat and the knife and fork have disappeared.
Audio problem: When Bugs says to the kid, "Cut it out, kid! Somebody will get hurt!", his mouth doesn't move.
Other mistake: When Daffy is helping the guest to his room, he looks at his keys as to which one would open it. When he finds the right key, he somehow manages to open the door without unlocking it.
Continuity mistake: When Bugs is reading the book of Fables at the beginning of the cartoon, he turns the pages backwards.