Continuity mistake: Towards the end of the movie when Dominique Swain and Tara Reid are talking in the yard, Dominique's hair has braids and her front left braid keeps getting tucked behind her ear and out again.
Continuity mistake: On the river, her lover has a cigarette, then there's a cut to Hela's mother, and when we see her lover again, the cigarette is gone.
Continuity mistake: In the scene where Grace arrives home and places her handbag on the counter in an anteroom the bag disappears in the next shot.
Factual error: At the beginning of the movie, Pecker is at the Washington Monument in Baltimore when he boards the 27 bus to Hampden. The 27 bus does go to Hampden, but the closest it ever comes to the monument is Howard Street, three blocks to the west.
Continuity mistake: Billy sits in the bathtub wearing nothing but his underpants. Later, when he is in the bath with his girlfriend, he's wearing a white undershirt he never had. (00:45:00)
Continuity mistake: When Dennis is in the bathroom with Bill, snorting drugs, his hands change position between shots. In one shot, he'll have the spoon in the vial and the next shot it's out. Then when he takes the last snort, the vial switches hands and he doesn't hold the spoon.
Continuity mistake: During the final fight between Cain and Todd, Todd breaks Cain's arm at the elbow and wrist. In the next shot Cain is staggering backwards as Todd winds up for another blow. You can clearly see that Cain's arm is fine and resting comfortably at his side. (01:24:13)
Continuity mistake: When Max and Freak go into the coffee shop, Max says hello to Mr. Hampton and puts three Baby Ruth chocolate bars down on the counter in closeup. Then it changes to a longer shot and Max puts the chocolate bars down again.
Continuity mistake: When Goldblum parks the car when having a flat tire, it's further away from the white line on the road than when he's changing the tire.
Other mistake: At the end of the movie, Brooklyn uses a bazooka to blow up the club. If you look at the bazooka, you can see straight through it, there is no shell in it.
Audio problem: When Julia and the girls are sitting with Eva discussing Bilal's disappearance towards the end, you can see Eva's mouth isn't moving in time with what she is saying.
Revealing mistake: At the beginning of the scene where the Reverend sells the guns to Mel, Bobby is walking outside and it is rainy and stormy. But once he enters the motel room there is sunlight streaming through the windows. Then, in the next scene when he is outside with Rosie, it's stormy again. (00:34:00)
Factual error: When Ratcher's F16 has a system failure, he reports that both his engines are out, but F16s are single engine aircraft.
Other mistake: When a Japanese newspaper is shown publicizing Jackie's performance, the headline above the photo actually reported that the Japanese budget had been approved by parliament.
Visible crew/equipment: In scene where Chris is arguing with the cops look very closely in the window of the car. The boom mic, camera, and crew are all visible.
Continuity mistake: First, we see Mr. Renaldi put both arms above his head while lying on the bed. Then in the next shot, he has them both down. His arm changes continue for the next two shots. (00:34:10)
Factual error: There is a scene where the guy takes a date whale watching in Boston Harbor. There are no whales in Boston Harbor, it's at least an hour and a half trip out to go see whales from Boston.
Factual error: When testing the new phone installation, the engineer only dialled the number, and not the area code, as you have to do on a mobile phone.
Continuity mistake: While standing in the water, the guys' bong jumps from hand to hand between the three of them without being passed.
Continuity mistake: When the movie first begins, Jan is talking to radio talk show host Howie Carr, if you look really carefully at one of the shots, Howie has a pen in his hand that he is holding steady. In the next shot, he is twirling the pen in his hand. The next shot shows the pen steady again.