Continuity mistake: The shots are badly mismatched when Demetrius saves the elderly slave about to fall from the rope. Their arms and legs shift positions multiple times between takes.
Continuity mistake: In the park, when Pongo tries to get Roger to meet Anita he yanks Roger ahead, and Roger leaves his hat on the bench. In the next shot, when Roger and Anita are entwined in Pongo's leash, Roger is wearing his hat. (00:09:30)
Continuity mistake: When Maria is hitting Tony while saying "Killer," her hair is across her left cheek. In the next shot, it is completely away from her face. (01:48:20)
Continuity mistake: When Sam Twist jumps from the train on the Forth Bridge, he lands in a puddle between the tracks, which are resting on sleepers on top of ballast - but when we see the train disappearing, there are no sleepers or ballast - the rails look like they're on concrete 'runners'. (00:55:00)
Continuity mistake: When Jesus is being flogged, he is turned over onto his back, and whipping is heard. Later on, no marks are to be seen.
Continuity mistake: Near the end of the movie, when George Peppard is talking to Audrey Hepburn in the alley and it's raining heavily, his hair switches between being combed back and combed to the side. Very obvious - this takes place several times.
Continuity mistake: In the cabin when they are coming up with the idea to swap places, Susan has on white sneakers in the beginning of the scene when she is on the bed, and Sharon has on the black Mary Janes. Later in the scene, with no time to change shoes, Susan is seen walking around the cabin wearing the black Mary Janes.
Continuity mistake: In the scene where the group is climbing the cliff, even when Mallory and Stavros reach the summit and kill the German soldier, there is hard rain. However, in the next shot when they throw the German soldier by the cliff, there is no rain and the sky is clear.
Continuity mistake: When one of the siege towers is rolled over the camera, you can see one of the pushers look for the camera and move to avoid it.
Continuity mistake: When the two men are carrying water up to their new cave home (via a home made elevator), one of the men is holding two buckets of water. In the shot where you can see the sea behind them, this man hands the second man a bucket of water, which he takes. In the very next shot, from inside the cave, the first man has both buckets and again hands the other man the bucket of water. (00:48:35)
Continuity mistake: At the beginning of their first pool match, Fats' collar goes from buttoned to loose, to back buttoned in only a moment on-screen.
Continuity mistake: After the fire in the captain's quarters everyone goes on deck for some fresh air. When they finally go below everyone has sweat soaked shirts except the psych doc who is perfectly dry.
Continuity mistake: When Elizabeth Medina starts to open her coffin you see her hand reach out and grab the side edge but in the next shot her hand is gone.
Continuity mistake: When Jake Cutter and Paul Regret ride into the ranch yard, two of the victims are hanging upside down over the gate. In the close-up, there are three arrows imbedded in the gate posts. In the far shots, the arrows are not present.
Continuity mistake: The police that come to the aid of the professor are driving an older Ford when they approach than when they arrive to help. The car is a newer model in the later scene.
Continuity mistake: During the scene, when Natalie Wood goes with Toots to make-out point after the dance and jumps in the water, it's supposed to be late at night. When they cut back and forth between shots at the waterfalls and Warren Beatty waiting for Natalie on her porch, all the scenes at the falls were shot in broad daylight, while the ones of Warren on the porch are at night.
Continuity mistake: When Sylvester is trying to sleep in his bed at night, you can see next to him there is a dressing table and on it there is an alarm clock and a hairbrush. Watch the hairbrush: in some shots it is next to the clock; others it isn't.
Continuity mistake: When the Coyote tests his dart bomb, he lights it with a match in his left hand. But when he throws the dart bomb in the next shot, the match that was in his hand has gone.
Continuity mistake: When Sylvester and the dog realise their legs have been connected by a pipe in the junkyard, the position of their feet changes between shots.
Continuity mistake: When Sylvester has caught all of Speedy's friends, he puts them in the bottle and he is holding the flute in his hand. But when see Sylvester a little later on, the flute has gone, and after Speedy has rescued one of his friends, Sylvester has the flute again.