Continuity mistake: After Mortimer picks up Elaine and literally throws her out the front door, he locks it to make sure she doesn't just open the door and walk in again. When Aunt Abby goes to open the door for Mr. Gibbs less than a minute later, she doesn't have to unlock it.
Continuity mistake: In the living room, during the party, Margaret O'Brien does a dance with a straw hat and cane with Judy Garland. In one shot Margaret has on blue slippers and in another shot she has on pink slippers.
Continuity mistake: When Velvet and her mother are sitting and talking in the attic, her mother pours some gold coins into Velvet's lap. Velvet is sitting back on her feet, but a few seconds later, she raises up on her knees to hug her mother. The coins should go spilling everywhere, but we never see or hear them.
Continuity mistake: When McMurray enters his office at the start of the film, he places his hand on the table and sits down. The position of the hand is different between shots.
Continuity mistake: When the maid is out on the street calling a cab, the policeman shows up. The distance between them changes from close to farther away, between shots.
Continuity mistake: When the lodger is looking down the stairs at Daisy (who has just been handcuffed as a joke), his body faces the railing in one shot, the wall in the next, then the railing again.
Continuity mistake: The first time Dave takes the liquor bottle out of his shirt, he unscrews the cap before taking a swallow. The second time, on the stage, he pulls a cork out with his teeth.
Continuity mistake: Ackermann is asked to write names and biodata of important German writers on the blackboard when Pfeiffer enters the classroom late because of a fake toothache. When the camera is back on Ackermann he has completed the task in a fraction of the time he would have actually needed. (01:08:55)
Continuity mistake: At the end of the film, Lieutenant Perry orders two men to take the Vickers .303 machine gun into the Frenchmans cafe. It cuts to a close up of the gun, which shows it's a WW2 era Vickers with a smooth water jacket. The men run and pick it up, and carry it into the cafe. When the scene cuts to inside the cafe, the Vickers has suddenly changed to a WW1 era Vickers with a fluted water jacket, which it stays as for the rest of the film.
Continuity mistake: In the scene where we see school children leaving the building and are going home we see two children go over to the see saw to ride on it. Buffalo Bill is talking to a little girl just outside the doorway and when it cuts in for a closer shot of the girl, you can see in the background there are now four children on the see saw; then again when the little girl starts walking home its back to the original two children who were on the see saw earlier on.
Continuity mistake: After Pigeon 13 has committed suicide, we return to pigeon headquarters and the captain draws a white line over Pigeon 13's name, Homer Pigeon, on the blackboard. In the next shot, the line has disappeared.
Continuity mistake: When Porky goes to bed, the alarm clock on the table near his bed changes position between shots.
Continuity mistake: When the curtain raises before Bugs Bunny does his tap dancing act, you can see the background behind him only has a columned building but in the next shot a mansion suddenly appears.
Continuity mistake: When Tom tears up the telegram into little pieces and throws them onto the plate, the number of pieces decrease between shots.
Continuity mistake: When Elmer Fudd picks up the newspaper beside him, you can see that he is holding the paper with his hands whilst looking at the front page, but when we see the newspaper in the next shot, his hands are nowhere to be seen.
Continuity mistake: Dick Powell puts his gun in his left trenchcoat pocket and then 2 minutes later takes the same gun out of his right pocket.
Continuity mistake: The postman walks into the tavern as the bell tolls. When he sits at the table with the others, everyone changed position at the cut. The bearded man had his hand on his glass, and now it's gone, and the priest's hand was not on the table, but then it is. (00:02:15)
Continuity mistake: When the dog is sniffing Bugs Bunny, you can see that Bugs has his right hand on the tree while he is eating a carrot, but when we see a close up of the dog in the next shot, Bugs' hand has disappeared.
Continuity mistake: When Sammy Squirrel meets Screwy Squirrel, you can see that Sammy is holding a basket in her left hand, but in the next shot the basket has disappeared.
Continuity mistake: When Daffy says to Porky, "Did you lose something, Fat Stuff?" the number of trees in the background decreases between shots.