Continuity mistake: When the waitress at Dottie's seduces Butch, the degree of boob exposure varies depending on the camera angle (not only due to perspective). (01:17:15)
Continuity mistake: When Butch sits at the counter at Dottie's, his left hand changes from pointing upwards and resting on the counter between shots, and when the camera looks across the counter his glass disappears. (01:18:45)
Visible crew/equipment: When Mack talks to Butch in the cornfield a crew member is reflected in the side of the car. (01:28:35)
Continuity mistake: When Phillip crawls under the fence the barbed wire tears the lower part of his costume, whereas in the next shot the tear starts at the shoulder. When Butch sends him back to his mom, the costume is totally torn up in the back for no specific reason. (01:45:05 - 01:59:10)
Continuity mistake: Towards the end of the movie the dollar bills Butch has stuck into the neck of Phillip's costume change positions or disappear completely between shots throughout the scene. (01:58:10)
Continuity mistake: When Phillip walks away with his mom, the dollar bills keep falling out of his costume one by one at quite a distance from the dying Butch. However, when the camera cuts to Butch the bills strangely pile up on him. (02:05:05 - 02:07:05)
Continuity mistake: When they are all in the trailer chasing Butch's car, the trailer shakes and smashes about, but when you see the view inside the trailer the passengers are not even moving or anything in the trailer moves.
Factual error: One character refers to the mobile command post in the Airstream trailer as "high-tech", a phrase that wasn't around in 1963; "space-age" would have been more correct for the period.