Continuity mistake: In a scene near the end of the movie, George enters the Building and Loan with a Christmas wreath on his arm. On hearing that he has a phone call from his brother Harry, he tosses the wreath on a table and picks up the phone. In the next second, the wreath is back on his arm. (01:17:35)
Continuity mistake: Marlowe sits in front of Joe Brody's apartment building, The Randall Arms. Later as he follows the gunman that shot Brody we see it from inside the car and the registration stickers are different. (00:47:40 - 00:57:20)
Continuity mistake: In the penultimate scene when Susan has just gotten off the train and is running to Ned Trent, you see her fall over flat on her face and then sit up. Cut to the close up where Ned has also fallen over, Susan is flat on her face again. (01:36:00)
Continuity mistake: When Frank, the DA and the policeman are discussing the accident, the policeman notices the electrocuted cat and it is shown next to the ladder. In the subsequent wide shot the cat is lying between the beams of the ladder. (00:42:50 - 00:43:35)
Continuity mistake: At her house and at the fair, Daisy's bangle bracelet repeatedly disappears then reappears and changes wrists as well.
Continuity mistake: Watch Devlin's hands in the cafe in Rio. They open and close between shots.
Continuity mistake: When Butch is chasing Tom, Tom puts a flowerpot on a swing which crashes into Butch and it leaves earth on the floor. But when Butch uses a guitar to spank Tom when he comes down on the swing, the earth has completely disappeared.
Continuity mistake: Screwy Squirrel puts some glue on the floor and Lenny treads on the glue, ripping off his paws in the process. At this point, you can see Lenny is in bare feet, but when he is walking a few seconds later, his paws are back on his feet again.
Continuity mistake: When the inebriated cuckoo pops out of the cuckoo clock at the beginning of the short, his feet are yellow, but when we see a close-up of the cuckoo in the next shot, his feet are now orange.
Continuity mistake: When we see Toodles in the window of her bedroom, the shutters have nothing on them, but in a close-up in the next shot, hooks have suddenly appeared.
Continuity mistake: When the convict trips outside the plastic surgeon's office, the sign on the window reads "plastic surgery" which changes to "plastic surgeon" in the very next shot.
Continuity mistake: When we see the cats lounging around, the bottle the drunken cat is holding has nothing on the label, but in the next shot it now reads "Arsenic and Old Grapes."
Continuity mistake: When Daffy Duck appears from the mail box, the red flag is pointing up. In the next shot, it is pointing to the left.
Continuity mistake: When Elmer Fudd is holding the test tube to drop liquid into the solution, you can see there is nothing on the side of the tube, but in the next shot a measuring system suddenly appears.
Continuity mistake: When Daffy steps out of the bus at the beginning of the short, he drops his suitcase on the pavement. When we see Daffy in the next shot, the suitcase has gone.
Continuity mistake: When one of the Gas House Gorillas takes the plate umpire's place during the game, you can see that the fence behind him has nothing on top of it, but when he calls Bugs out, a net has appeared.
Continuity mistake: When the newsreel begins at the movie theatre, we see the back garden of a family home and you can see that the screen on the radar has nothing above it, but when we see a close-up of the radar in the next shot, a sign with the word "Radar" has appeared.
Continuity mistake: After Bugs shoots the man in the audience for coughing, the style of notes in the music book in front of him changes between shots.
Continuity mistake: When the state trooper examines the letter, the is no stamp. However, when Charlie Chan (Sydney Toler) examines the letter, there is a stamp present. (00:43:10)
Continuity mistake: When the scientist locks the door to prevent Bugs from escaping, you can see the latches are made of metal, but in the next shot they are now made of wood.