Other mistake: When Dean compliments Les on the great driving making up for a year of boredom, Les looks around up in the air in a direction away from the car, then suddenly says "there's a scratch on my car." He then looks down on the car at the scratch and shows Dean. He said the "scratch" line before actually seeing it.
Other mistake: When Walker and Michelle fall down the steps at Dede's apartment, Walker lights a match to show Michelle the matchbook. The light from the match flickers on their faces but if you watch closely you can see the match go out as soon as Walker strikes it. (00:54:45)
Other mistake: In the final gun battle when the Regulators are trapped in the attic of the burning house, one of the characters backs into the brick chimney that's coming up through the floor. You can see the entire chimney move when he backs into it.
Other mistake: In one shot, during the lynching, the noose comes undone from the character's neck while he is hanging.
Other mistake: Pay attention to one of the early innings of the baseball game as one of the Angels' players hits a home run. Though probably intentionally set up this way as to avoid any problems of "logo patents" and such with the real-life MLB California Angels team, he is wearing a helmet without the team logo on it. Also, it is at Dodger Stadium. (01:07:35)
Other mistake: In the scene where Nico and the other agents are at the meat place, they are being fired upon by the drug dealers. In one shot we see a bad guy shoot a cop on a metal staircase. Look in front of him, and there is a round-like object on the staircase This object moves to the right between shots. (00:22:55)
Other mistake: As the murderer spots a police car coming towards him he turns to his right onto a dirt road, there is a huge boulder at the point where he turns, marked "No trespassing, Bishop Falls camping". As he turns he sideswipes it, rocking the boulder, however the sideswipe has no effect on his vehicle.
Other mistake: When Eddie Valiant gets thrown out of the Ink and Paint Club, he is already starting to go through the air as the gorilla moves his hands to throw him. (00:21:20)
Other mistake: Right after Heather Duke and Heather McNamara drop in on Veronica and Betty Finn playing croquet, Veronica talks to her parents about the suicides. She still has a croquet mallet in her hand, so little time can have passed. Heather Duke rushes in with a shopping bag, and tells Veronica that while at the mall they heard about Martha Dumptruck's suicide attempt. But Heather Duke had just left Veronica's house - there wasn't enough time for these events to happen.
Other mistake: The Duke is picked up in New York. They are headed to L.A. via Chicago. Jack has Eddie wire $500 to Amarillo, Texas. The route from Chicago to L.A. would not take them anywhere near Texas.
Other mistake: Mr. Phillips told Michael (Danny) that he'd like to hear him play on his "Steinway at home", but didn't say when or give Michael his address, but Michael was able to ride his bike to the Phillips' house. Michael was in this new school (and State) for only one day, so it seems unlikely that he'd know where Mr. Phillips lived. (00:26:33)
Other mistake: Ok, this is being nitpicky, but in the scene where Freddy is pretending to be paralysed, and Lawrence (pretending to be a doctor) is whipping him on the legs in front of Janet to taunt him and get him to crack, in reality, Freddy's face would have been bright red from the pain. He could never hide that.
Other mistake: At the beginning of the movie, Ginevra is reading the magazine but is interrupted by the outbreak of a thunderstorm. There is no rain at all, though, just the sound effect of thunder, with the car already wet at the beginning of the take to try to establish the illusion. (00:00:40)
Other mistake: When translating Dutch for English, one translation uses "their" when it should've been "there." It's in the scene when we first see the lead cop talking to his daughter.