Continuity mistake: While Shannon and Sarah are speaking to Robin, two people (a blond white guy and a black guy with a blue satchel) pass by the trio twice.
Other mistake: Towards the beginning of the film, the teacher counts 19 students then says one is missing, implying there are 20 (including Mike) However, Mike ends up being paired with the teacher, despite there being an even number of students and therefore everyone should have a partner.
Continuity mistake: Towards the beginning of the movie, Gerry's son spills hot coffee all over Gerry's shirt. He is wearing a white shirt/vest for his uniform. There is no stain or even wetness left behind.
Continuity mistake: When Kantmiss is climbing the tree, the ladder leading up is almost vertical, but in the next shot as she reaches the top, the ladder now has a significant angle to it.
Continuity mistake: When Dusty first takes off for the big race his "D7" on the right side of his tail disappears. (00:32:35)
Factual error: In the scene where they are heading towards the Aria hotel to check for hotel rooms, they walk past the volcano at the Mirage. They are walking in the opposite direction (away from) the Aria hotel.
Factual error: At the end, Josh and Nat both run onto the Eurostar platform when they do not have a train ticket - this would be impossible, since there are ticket barriers and security.
Continuity mistake: Before the Princeton interview, Jeremiah has his shirt untucked and he tucks it in when asked to. But when he is standing at the door with the interviewer, his shirt appears untucked, then tucked, and then untucked again, then tucked in again.
Audio problem: When Hayes and Nick are fighting at the end, Hayes grabs Nick and says "get over here", but his mouth never moves and his teeth are clenched the whole time.
Continuity mistake: In the scene when Papi is in the back of the white Fodge driven by Stig, the Ford Bronco driven by Bobby crashes into Stig's white Dodge twice - both headlights are smashed out. Once the Bronco goes into the ditch and comes back out, the passenger side headlight isn't broken.
Continuity mistake: Jack puts his hat back on as Mr. Ginormous is challenging him to a fight. He keeps his hands on his hat like he's trying to hold it on in a wind storm. The angle changes to behind him and suddenly his arms are down at his side. (00:43:20)
Continuity mistake: When Otto is sat down at his HQ, telling the Vet and Kisko that they would become steak, Otto is holding the newspaper in his hands, but in the next shot, the newspaper has disappeared, and he stands up, holding the steak. (00:20:10)
Continuity mistake: Amanda warns the team that if they breathe a word of her secret life, she will hurt them "in ways that haven't been invented yet." The camera cuts to the crew and Savanna is sitting up, next to Melissa. In the next shot, Savanna is right above Ben's right shoulder.
Continuity mistake: At the baseball game while Owen Wilson talks with his sister, the sun changes between shots. (00:09:40)
Continuity mistake: When Dave is shot by Mindy while training, there are two bullet holes in his jacket when he has only been shot once at that point.
Other mistake: One of the three girls swallows the wedding ring and later it's retrieved by pulling it out of her stomach, but earlier in the fight in the toilet when the boy's head came off, there were no pipes or tubes connecting the head to the stomach.
Continuity mistake: In the scene where Stallone gets hit by the UFC fighter, he doesn't see the hit coming because he gets hit from his right side. Later on, when driving his girlfriend home from the restaurant, he is still blind in his right eye and doesn't see the car coming from the right. However, during the Grudge Match, he is suddenly blind in his left eye.
Suggested correction: Clearly, he is blind in that eye. His trainer instructs him to stand to the left and keep Kid in his line of vision with his right eye.
Other mistake: When Odd Thomas and Stormy are riding on his moped through town to stop the massacre they pass a car dealership. All of the letters on the dealership signs are reversed except for a large lighted awning sign that says "Welcome to quality." The normal and reversed signs appear at the same time in the same frame. (00:48:00)
Continuity mistake: Right before Gray gets his cheekbone broken, he moves his tongue and grabs his nose mockingly. From the side angle he is not grabbing his nose.
Continuity mistake: Just after Miller, Casey, and Jeff Chang get away from the college's health center and steal the SUV, they plow through a row of street-side parking meters that snap off and hit the windshield, cracking it. Through subsequent shots, the windshield continually goes from being cracked to completely undamaged.