Continuity mistake: In the hazing scene when school is out, Joey Lauren Adams says, "Welcome to high school honey", and then pours a bag of flour all over a girl, but when it shows the girl barely any powder falls down on her.
Visible crew/equipment: During the grab and go stop Pickford, Don, Pink and Mitch are in the GTO. Pickford is the first to climb out of the car, If you look closely you can see he crew in the reflection of the door. This happens not once but twice when Don and Mitch return with the beer.
Continuity mistake: When the girls are hazing the freshman and they're talking to Don, the first take his legs are up and crossed, then the next take they're down and crossed, then up, then down, and this goes on the entire scene.
Factual error: When they are initiating the freshman girls after school in the parking lot you can see a red mid-70s Firebird with IROC wheels that did not come out until the mid 80's. The film is set on the last day of school 1976.
Visible crew/equipment: During the conversation about the dream where the guy is making love to a woman with the head of Abe Lincoln, the reflection of the boom mike can be seen in the top part of the classroom door.
Continuity mistake: While they're driving around town talking about college, you see the three guys in the back seat, the camera goes to another angle, then a few seconds later, you see them in the back seat again, but the guys have switched places.
Factual error: During one of the scenes, you see a guy on a motorcycle wearing a Misfits jacket. The movie takes place in '76, but the Misfits didn't form until '77.
Factual error: When Cynthia, Mike and Tony are driving to the Top Notch, there is a very clear shot of a billboard alongside the road. It advertises PCA, an HMO for employees of the State of Texas which only existed from the mid-1980's until 1992. (The film, of course, is set in 1976.)
Visible crew/equipment: In the scene where O'Bannion gets the paint dumped on him by the freshmen, you can see a boom in the bottom of the shot between the kids legs.
Continuity mistake: Second, they are in the back of Pink's El Camino, but he rode with Wooderson. Pickford didn't drive it; he had his GTO.
Continuity mistake: After Carl's mom pulls a shotgun on O'Bannion, his paddle is showing the "F AH Q" side. In the next shot, it is reversed showing the "Badass" side.
Revealing mistake: When O'Bannion got paint dumped on him, he went to the curb to break his paddle. There is already visible white paint on the curb in the shape of the paddle prior to him slamming his paddle into the curb.
Continuity mistake: In the scene where O'Bannion gets paint dumped on him by the freshmen. He walks across the street and yells at and pushes Mitch. While he does this Pink is standing in front of Wooderson's 70 Chevy with his beer on the hood but during O'Bannion's' fit of rage Pink drops his beer then picks it up and sets it back down.
Continuity mistake: Throughout the movie, Pink's car held the Kiss-face-painted statues (during the intro when it was still covered/when everyone saw it over at the Emporium/when they were on the highway on their way to the beer bust), except for the scene when he dropped off Mitch after his baseball game which was prior to the scene at the Emporium. Only Benny had the other pick-up among them (and I wouldn't include Darla's) and his was occupied the whole time.