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.
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 Spike says "Let me have it, pal!" he is holding a knife, fork and a plate and has a napkin around his neck. But when Drippy punches Spike, he goes back into a veranda and the napkin, plate, knife and fork have all disappeared, and when Spike crashes back into the door, the napkin, knife and fork have re-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 Droopy drives his car through the wall, the stunt results in some bricks being left on the floor. When Spike attempts to drive through the wall with his car, the bricks 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 Sylvester is at the medicine cabinet, he takes out a bottle of Seasick Remedy and starts drinking it. But when we see Tweety in the cabinet in the next shot, the Seasick Remedy bottle is still on the shelf when it should be in Sylvester's hand.
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 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: 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: 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 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 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 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: 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: When Tom is throwing dynamite into Jerry's mouse-hole, you can see he is surrounded by sticks of dynamite, but when Muscles marches out of the hole with the dynamite, the sticks have disappeared.
Continuity mistake: When Sylvester discovers that the cupboard door has a lock on it at the end of the cartoon, he is holding a can opener in his right hand, but after we see a close-up of the lock, we return to Sylvester and the can opener has disappeared.
Continuity mistake: When Bugs Bunny sees the ants running off with his picnic food, the background him is houses and trees. The background changes to a hotel a couple of shots later, and when Bugs notices one of the ants carrying a water melon, we are back to the houses again.
Continuity mistake: When Porky Pig arrives at the castle, he appears completely dry. But when he opens the door in the next shot, he is soaking wet, and when we see Porky a few shots later, he is dry again.