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: After waking up, Lulu's clothes are suspended from the ceiling and she leaps from the bed down into them, getting them perfectly on her in an instant and then runs off. Her hat is not amongst the items, and as she runs off screen you see that she has nothing on her head. But the shot changes to her running directly to the bathroom, and suddenly her little red hat is on her head. (00:01:10)
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 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 Bugs Bunny crosses the finish line, you can see there is only grass next to the road. But in the next shot, kerbing appears out of nowhere.
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: 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.
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 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: 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 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 Elmer runs back from the boiler room to the businessman's room, you can see that he has a bandage on his head, but when he runs from elevator to the room, the bandage disappears. It re-appears when Elmer is in the businessman's room.
Continuity mistake: When Elmer Fudd goes red in the face when he is with Bugs Bunny in the boat, the water that was coming out of the "Tunnel of Love" only a few seconds earlier has completely disappeared.
Continuity mistake: During the final scene between Humphrey Bogart and Elmer in the kitchen, the door to the kitchen can be seen in some shots, but in other shots it is missing.
Continuity mistake: When Jerry rings the gong to tell Tom and Butch to stop fighting, Tom goes back to his seat by the table. When he sits down, the vase on the table next to him changes colour from pink to blue between shots.
Continuity mistake: When Thomas is sawing a hole around Tweety's cage, you can see the picture on the left is straight and on the right there is a door. But when the ceiling collapses, the picture is now slightly crooked and the door has changed into a window with curtains.
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 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.