Continuity mistake: When Jerry is removing the nail from Spike's foot with a hammer, the distance of the wall behind Spike changes between shots.
Continuity mistake: At the beginning of the cartoon, you can see that the top part of Tweety's cage is small but in the next shot has increased in size.
Continuity mistake: The pictures on the wall of Calvero's apartment move around during the scenes, particularly the photos flanking the clock on the mantle above the fireplace. A particularly striking example is during the scene wherein Terry recovers the ability to walk. The scene starts off with a photographic-profile-portrait of Chaplin (not decked out as Calvero the Clown) on the left side of the clock and on the right side of the clock, a full-length photo of Calvero the Clown wearing a straw hat, and leaning on his cane, which is held in his left hand. As the scene progresses, the portrait to the left of the clock is replaced by a half-length photo of Calvero the Clown wearing a top hat, with his cane swung across his body, angled up. As Terry realizes she can walk, the portrait re-appears to the left of the clock, and there is nothing to the right of the clock.
Continuity mistake: When the captain lifts the lid and finds that Jerry has been eating his pancakes, you can see there is a knife behind the plate, but when we see a close-up of Jerry in the next shot, the knife has disappeared.
Continuity mistake: When the orange kitten and the brown kitten attend to Tom after they knocked him out by hitting his head on the ceiling, the eyebrow over the orange kitten's right eye disappears for a few seconds.
Continuity mistake: When Bugs says to Wile E. Coyote, "We mailed you people a check last week!", he slams the door in Wile E.'s face. You can see that Bugs is standing by the elevator hole when he slams the door, but in the next shot he is standing on the hole and going back down to his home.
Continuity mistake: When we first see Bugs' hole, you can see there are three carrot ends around it. After the dogs run over the hole, there are now only two carrot ends, and when the hunters pass over the hole, there are now three.
Continuity mistake: When Bugs tells Sam he's going to radio the authorities, he takes his book along and on the front cover it reads "Learn to Fly." But when Sam goes to retrieve the book after Bugs throws it out of the open door, the wording is missing.
Continuity mistake: Before Mickey Mouse puts Pluto's birthday cake on the table you can see it is completely clear, but when Pluto is sitting down and the cake is in front of him, a saucer has suddenly appeared.
Continuity mistake: When Daffy Duck is printing fake rabbit tracks at the beginning of the cartoon, he puts two tracks next to Bugs Bunny's hole. But when Elmer Fudd arrives at the hole, the two tracks have disappeared.
Revealing mistake: In the opening scene the Club's dancers are in full-swing, including the tall, lanky gentleman from Lautrec's famous Moulin Rouge poster, the one with the very angular, extended nose and chin. In several closeups it's very plain that the chin is a makeup appliance: the edge of the appliance isn't blended very well with the actor's real skin.
Continuity mistake: When Daffy Duck beats up the stuffed duck, you can see the stuffed duck has a collar on its neck, but when Daffy picks him up, the collar is missing.
Continuity mistake: When Tom (dressed as a seal) performs "Yankee Doodle" on the horns at the circus at the end of the cartoon, the background behind him changes between shots.
Continuity mistake: When the Coyote is flying in his makeshift air balloon, there is a rope around the bin that keeps disappearing and re-appearing between shots.
Revealing mistake: The Cliffhanger Ending of Chapter Three has Commando Cody trapped in a van that the villains jump out of before before the van goes off a cliff. As the van approaches the cliff there is a driver-eye view, you can see tire tracks from other takes of this scene. (00:46:50)
Continuity mistake: The cupboards in the kitchen are yellow throughout the short, but when we see Marc Anthony in pain while the kitten is kneading his fur, they are now green.
Factual error: In Danny Kaye's song about "The Emperor's New Clothes" he persistently and repeatedly uses the words "the king is in the altogether." Hans Christian Andersen lived from 1805 to 1875, but the expression "in the altogether", meaning naked, was invented and popularised by George Du Maurier in his novel "Trilby" which was not published until 1894.
Continuity mistake: When we first see Bugs' home at the beginning of the short, there are four carrot ends around the hole. When the oil tycoon and Maverick approach Bugs' home later on, there are now only two carrot ends.
Continuity mistake: Mickey Mouse uses an axe to cut down a tree for Christmas. Each chop he makes is horizontal, but when the tree falls over, the lower part of the trunk comes to a point, and the stump remaining in the ground has disappeared.
Continuity mistake: When the bandit takes Droopy's wallet, he empties the contents and finds a photo of Droopy's girl. At this point, you can see the bandit is holding the photo with two hands, but when we see a close-up of the photo in the next shot, he is holding it with only his right hand.