Continuity mistake: In the start of the movie Charles says that he has got a letter from his aunt in Italy. But she lives in Brazil, and you don't hear anything about his aunt being on vacation to Italy.
Continuity mistake: The doctor just killed Mr. Fleming. Cut to Agnes Moorehead playing cards; She is casting no shadow on the desk from the side view, but in the view with the camera in front of her, she is projecting a shadow. (00:11:35)
Continuity mistake: In the scene where we see Steve McQueen in a jeep waiting for the plane to taxi, he is chewing gum. He then he takes the gum out and sticks it on the top part of the windscreen frame of the jeep. In the next shot the jeep arrives where the plane is and there is no sign of the gum on the windscreen frame.
Continuity mistake: In the opening scenes, the panoramic view of the Larkin homestead shows Lorenzo's "Gummint" Ford sitting with its hood up, days before he has been assigned to the case.
Continuity mistake: When Richard Hannay jumps from the Sheriff's window into a passing truck it is full of bales of hay. The next time we see him in the truck it is full of sheep and the bales of hay have vanished.
Continuity mistake: When Mama Ape takes Bugs Bunny out of his bed, Bugs is wearing a baby hat, but when Mama is holding him in the next shot, the hat has disappeared.
Continuity mistake: Susie, a six-year-old girl, leans over a bathtub and reaches for a rubber duck. She falls into the tub but it obvious the tub has no water. (The actress, Terry Burnham, landed on a pad or cushion.) Immediately after she falls, there is a very noticeable jump in the film. Then water splashes up but the splash is much too high to have been made by the little girl. The next scene shows the mother entering the bathroom and the little girl, now completely drenched, standing up in the bathtub.
Continuity mistake: When Elvis hands Bugs the hose, Bugs drops his carrot on the ground. Later on in the scene, the carrot disappears.
Continuity mistake: When Bugs is relaxing in the cauldron, he looks at a recipe book on a tree stump, which wasn't there when he first came to the cauldron.
Continuity mistake: When Woody says "No, you shoot first!" to Dapper, you can see there is nothing by Woody's foot. But after a quick cut to Dapper, we return to Woody and a tee has appeared from nowhere.
Continuity mistake: Frank approaches the dead tree, and Brigade tells him "That's close enough." In the background, the henchman with the hat that is most frequently shot on his own, separate from the others, is on the horse completely still. In the close-up, he's having a hard time keeping him quiet. (01:07:05)
Continuity mistake: When Foghorn Leghorn slips an egg into Miss Prissy's nest, you can see that there is nothing on the wall of the chicken shed, but when one the other hens says "A little baby rooster!", there are now nails on the wall.
Continuity mistake: When the MR-1 first lands on Mars, the sky visible through the portholes is fiery red, which is the uniform color of all exterior shots in the film. However, a whole series of interior shots throughout the film show that the sky visible through the portholes is suddenly and inexplicably baby blue. At two points, when Iris sees a Martian through the porthole, the sky momentarily turns pitch black.
Continuity mistake: The car is out of gas, and Sylva Koscina gets impatient. As the shot changes, Walter Chiari's arm is on top of the car door (it wasn't in the first shot) and Dorian Gray crosses again her arms on top of the bag - assuming the same pose she already had. (00:17:00)
Continuity mistake: Daffy takes down a gun from the mantle, but when Daffy points it at Bugs in the next shot, you can still see the gun on the mantle.
Continuity mistake: Christopher Lee looks outside his useless nephew's room and spots two hot Swedish girls. Renato Rascel has a bottle of wine in hand and walks towards him, but the bottle is gone when he tries to stop him. (00:23:40)
Continuity mistake: When Bugs is performing his shooting stunt in the saloon, you can see the entrance behind Sam has nothing between it. When Sam tells Bugs he's missed, we cut to Bugs who says "Wait!" and then return to Sam, and this time there are doors between the entrance.
Continuity mistake: When Stanley is shown around the cake factory he takes his hat off and puts it on a conveyor belt and it is carried into a machine and covered in icing. But in the scene before this with the supervisor saying "and this is the enrobing chamber" you can see his hat come into shot on the conveyor belt already. In the next shot he still has his hat on and only then takes it off and puts it onto the conveyor belt. (00:13:08)
Continuity mistake: When Sylvester is looking through the window with his binoculars, he looks at Spike and you can see there is a bowl with a bone next to his kennel. But when Sylvester sneaks past Spike's kennel after entering the yard, the bowl has gone.