Visible crew/equipment: The furry suits the "mole men" are wearing clearly show the zippers up the back when one of them is going down a well.
Audio problem: During the Tea Party scene, the Mad Hatter and March Hare ask Alice to tell her story. After the Mad Hatter says "And when you come to the end, stop!" audio follows of the voice director saying "great," leftover from the original recording. (00:45:40)
Continuity mistake: When Sylvester's owner tells him that she will get into the hotel, you can see that she is wearing a brooch on her shirt. But when she is carrying Sylvester around her neck in the next shot, the brooch has vanished.
Other mistake: In the opening titles, Irven Spence's first name is incorrectly credited as Irvin.
Continuity mistake: When we see Nasty Canasta's drink, you can see there are holes on the counter next to the glass when the bartender puts two ice cubes in it. When Daffy Duck dares Nasty Canasta to drink it, the holes have disappeared.
Continuity mistake: When we see Junyer Bear sleeping in bed at the start of the cartoon, you can see he has "Junyer" written on the end of his bed, but when he is sitting up a couple of shots later, the word "Junyer" has disappeared.
Continuity mistake: In the overheard view of the dog grooming the cat, you can see there is nothing beside them, but in the next shot a blue ribbon suddenly appears.
Continuity mistake: When we first see Bugs' home at the start of the cartoon, there is nothing around the hole. When the camera pans in on the hole, pieces of carrot have appeared.
Continuity mistake: When we first see the cheese where Hubie and Bertie have been eating from, there are two holes and by the left hole there are pieces of cheese. When Hubie emerges from the hole, the pieces have disappeared.
Continuity mistake: When Sylvester and the orange cat take Tweety Pie's nest, you can see the outside of the nest is covered in snow. But when the two cats reach the bottom of the pole, the snow has gone.
Continuity mistake: When Elmer realises there are no more bullets in his gun, you can see there is a tree behind Bugs. But when we see Bugs in the next shot, the tree has disappeared.
Continuity mistake: When the young man says "What's cooking?" to St. Peter at the beginning of the short, St. Peter is holding a feather in his right hand. In the next shot, the feather has disappeared.
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 Sylvester is angry that the blade of the axe flies through the mail slot, he strikes the can of tuna with the grip and in doing so crushes the can. When we see Sylvester setting up a piano a little later on, the can is undamaged.
Continuity mistake: When Bugs takes out the bubble gum, you can see he is holding the gum between two fingers and a thumb. But in a close-up, he is holding the gum at the bottom of the wrapper.
Continuity mistake: When Bugs Bunny puts down the bottles and sees the ants running off with his picnic food, you can see there are five brown bottles in the tub, but after a quick cut to the ants running away, we return to Bugs and the bottles have disappeared.
Continuity mistake: The flagpole on the ledge of the skyscraper with Spike's milk bottle on it was not there originally when Droopy rescued Spike.
Continuity mistake: When Porky Pig falls off the cliff, he has a shrunken harp around his hands and is wearing green shoes. But when he falls into the pot of gold, the shoes and harp have vanished.
Continuity mistake: After Tom says goodbye to his friends, he goes to sleep on the window ledge. At this point, you can see it's night time, but when we see him sleeping from inside the house in the next shot, it is daylight outside.
Continuity mistake: At the start of the shooting the balloons sequence, Spike is about to shoot and you can see the bottom shelf of the prize stand has two polar bears and two dolls. When Spike has finished his round, all of the prizes on the bottom shelf are polar bears.