Continuity mistake: When Von Hamburger shows the producer the completed reel, it has a green spool and he puts it by the side of the producer's desk. Daffy then replaces it with his own film and you can see that the spool is light blue. The spool then becomes green again in the next shot.
Continuity mistake: When Bugs is making Francois look like a rabbit, he cuts up Francois' moustache to make whiskers. When Bugs says "You make a swell rabbit, Doc!" the whiskers disappear.
Continuity mistake: When Dr Jekyll enters his laboratory at the start of the cartoon, he locks the door with his key. After drinking the Hyde Formula, he turns into Mr Hyde for a short time before going back to Dr Jekyll. When Jekyll leaves the laboratory, he opens the door without unlocking it.
Continuity mistake: When Daffy disturbs the man by hitting the door on his room with a hammer, the man leaves and you can see that Daffy puts one of the fingers of his right hand on his beak. When we see the man going down the lift in the next shot, Daffy no longer has his finger on his beak.
Continuity mistake: When Junior is reading the back page of his father's newspaper during breakfast at the start of the cartoon, the page has "Bugs Bunny Comics" at the top of it, but when Papa Bear puts his hand through the newspaper to hit Junior and tell him to eat his oatmeal, the page now just says "Comics".
Continuity mistake: When Daffy pushes a button to start the massaging chair, you can see that the button panel is on the arm of the chair, but when we see Elmer receiving a massage, the panel has disappeared.
Continuity mistake: When Bugs is square dancing with the hillbilly brothers in the hall, you can see that the hall has a decoration on the wall, but in the next shot the decoration has disappeared.
Continuity mistake: When the construction worker sees a bird in front of him, he says "Ha!" The worker then sees the city below and falls. At this point, you can see the worker is holding his hat in his left hand, but when he falls through the first plank of wood, the hat is nowhere to be seen.
Continuity mistake: When Bugs Bunny arrives at the "Dead End Kid's" house, you can see there is nothing in the window, but when he comes to the door in the next shot, a grey object suddenly appears.
Continuity mistake: When the man is imitating the frog to the agent in the talent agency, he is initially holding his hat, and then throws his hands up into the air. When his hands come back down, the hat has disappeared.
Continuity mistake: When Porky is making his breakfast on the stove, the direction of the frying pan handle changes between shots.
Continuity mistake: When the moth is in the bar, he pulls off part of the man's trouser leg and eats it. You can see that the tear mark has pieces of cloth around it, but when the moth says "And pre-war cuffs too!" the pieces of cloth have completely disappeared.
Continuity mistake: When the mice are serving the cat, there is a mouse who is taking the cat's order and he drops his notepad on the floor when he says "Mouse?" and runs off. But when we see a full view of the cat and the mice in the next shot, the notepad is nowhere to be seen.
Continuity mistake: When Daffy gives Porky his card, Porky holds it with both hands but a close-up of the card shows him holding it with only one hand.
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 Elmer is picking up the money and putting into the case, the dollar note next to Sylvester changes position between shots.
Continuity mistake: When Bugs pours red ink on Sam's head, he leaves the bottle on its side and there is a label saying "Ink" on it. In the next shot, the word "Ink" has disappeared.
Continuity mistake: When Porky tells Daffy to arrest Nasty Canasta, you can see the window next the door has four panes of glass, but when Daffy challenges Canasta to a fight, the number of panes has increased.
Continuity mistake: When Egghead Jr. shows Foghorn Leghorn the formula for how he managed to dig him out of the ground, you can see that Egghead has nothing next to him, but in the next shot a spade has suddenly appeared.
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.