Revealing: At the end of the movie, when the Michael and company's car is parked in front of the "Las Vegas" hotel, if you look thru the glass windows you can see 2 men with 1970's "hippie style" haircuts walking thru the hotel lobby. This was supposed to be the late 40's or early 50's.

Other: After Sonny is shot on the causeway, there are a very large number of bullet exit holes visible on the sides of the tollbooths, which could only have been made if the gunmen shot through the walls (not the windows) of the buildings from the inside. This is common in movies. In real life, bullet entry holes in wood appear as small black dots, not the more dramatic-looking splintered gashes made on the other side of the wood as the bullet exits.

Continuity: When Barzini's driver gets shot the killer first shoots him into the chest but the driver grabs his stomach, where he is going to receive the second bullet.

Continuity: When the Godfather sits in the garden, talking to Michael who has just returned from Las Vegas, he is holding his wine glass in his hand. When he puts it down the amount of wine in the glass doubles.

Continuity: When Luca Brasi goes to meet Sollozzo and Tattaglia, he gets stuck in the hand with a knife and the blood runs out. Some few seconds after you see a shot of the hand, where the blood is already dry.

Continuity: When Michael Corleone goes to Las Vegas for his interview with Moe Greene, watch carefully when Moe sits at the table while continues his arguments with Michael. There's a glass of water that changes places from shot to shot. At one moment, the glass is behind Moe's arm, then, at the next shot is in front. Moe moves the glass at one point, but nevertheless, the glass continues to move from shot to shot.

Continuity: When Tom Hagen and Woltz have dinner the scene starts with a wide shot with a huge log fire in the fireplace behind Woltz. In all later shots the fire is about half as high.

Revealing: When Michael is riding in the car with Sollozzo before the assassination, notice the headlights in the rear window during the close-up. You can notice that many of them move directly on top and underneath each other, impossible for real car's headlights to do such a thing.

Continuity: When Barzini gets shot in the back we see a lot of blood and other matter pouring out. When he rolls down the steps his coat is intact again.

Continuity: When Sonny is gunned down at the toll station the bullet holes in the car roof disappear and reappear. Plus, there are some dents in the roof where the bullet holes appear.

Continuity: Before Luca Brasi's hand gets pinned to the counter by Sollozzo's knife, Tattaglia holds it down on the counter with both hands, but then, in a close-up of the stabbing, Brasi's hand is hovering over the counter and Tattaglia's hands are nowhere.

Factual error: Fredo is wearing a very 1970's sport coat and wing-tipped shirt ensemble in the Las Vegas hotel scene, set some 20 years earlier.

Factual error: When Luca Brasi goes to meet the Tattaglia family and Sollozzo to pretend he would like to defect, and they garrote him, Brasi is making all kinds of loud noises while being strangled until he dies. During choking or strangulation, one is unable to make much (if any) sound because air cannot pass through the vocal chords on its way out of the body just as it cannot enter the body and get to the lungs.

Revealing: In the kitchen scene where Sonny is talking on the phone one can see that the lower portion of the telephone handset has no internal parts.