Continuity mistake: Just before Declan and Anna are going to sleep in the B&B, when she agrees he can sleep in the same bed he is holding a pillow. He then puts the pillow on the bed and the pattern on his and hers pillows are on the left side, however the next scene shows that his pillow pattern is on the right. (00:56:55)
Continuity mistake: In the scene where Aldous gives Arron the adrenaline shot, the needle changes from being in his arm to being in his shoulder.
Continuity mistake: When the three guys are having lunch, in one shot the traffic is at a stand still, but in the next shot seen in the reflection of the window, the traffic is moving fast. Next shot it is at a stand still once again.
Continuity mistake: In the "multiple dissection" scene Doctor Knox uncovers each of the four dead bodies one at a time. But, following a quick edit to the applauding students, in a closer shot one of the bodies is covered up again.
Continuity mistake: The sweat stains on the phone costume keep changing when in the police station. (00:12:00)
Continuity mistake: After Rita and Eddie's fridge is repossessed they are arguing outside their flat. On the wall outside their neighbours' flat there is a wheeled trolley or pushchair hanging on the wall. This disappears and then reappears several times during this sequence of the film.
Continuity mistake: In electric avenue scene, the number of wood bars the cast has to go around changes from two to four.
Continuity mistake: When Wally is talking to Sebastian in his bed, the latter has lost two of his bottom teeth. For most of the rest of the movie they are there. In the last scene they are gone again.
Continuity mistake: When the "Toothfairy" met the cat for the first time after they fall out of the bed, you see only a piece of block, and 2 shots later there is a skateboard next to it . (00:35:45)
Continuity mistake: When Jen is driving her Volvo convertible, she gets stopped by one of the neighbours. Just before she gets stopped, you can see the back window is up. When the camera shows Jen talking to the neighbour, the window is now down, and when Jen drives away, the window is now back up again.
Continuity mistake: Will Ferrell is in a chair with a blue blanket behind him. The shot moves to the other character and back to him, the blanket is gone. In the next pan it's back. (01:44:00)
Continuity mistake: In Joanna's bridal shower she gives a necklace to Marni. When Marni is talking to her nanny the necklace disappear between shots.
Continuity mistake: During the scenes at his farm when Stan has his shirt off, he is bare chested. Later during the scene in Zoey's bedroom, when Stan is removing his shirt, he has a hairy chest.
Continuity mistake: When the movie starts with the guys filming a video, the position of the rifle in the guy's hands is inconsistent in every single angle.
Continuity mistake: When Becky is having lunch in the park with her workmates, they all turn to look at Adam and the blonde workmate is holding her drink in the air. In the next shot, however, the drink is flat on the table, with no time to change.
Continuity mistake: When Brown is talking to Michies Mother about the Final jam, Brown goes round to his desk. If you look at the computer when he does this, it is pointing slightly to the left. Then he goes round to the front of the desk and the computer is pointing to the right before anyone has the chance to move it.
Continuity mistake: When they jump on the train at the end of the film, the train tail light is on the right hand side and its also a light that didn't come in until the 80's and in the long shot of the train speeding along the tail light is on the left hand side.
Continuity mistake: When the security guard opens the back of his vehicle the gun is pointing to the left, but when the shot changes as the security guard reaches in for the hat, the gun is pointing to the right. Then as he turns to put the hat on Tyler, the gun is again pointing to the left.
Continuity mistake: During the scene on the beach, the shadows lengthen and shorten dramatically from shot to shot.
Continuity mistake: After RVD is shot by the lone motorcyclist he goes home to take care of his wound. You can see that he was shot in his LEFT shoulder. When he goes to the bathroom and takes off his shirt, the wound is on his RIGHT shoulder. After bandaging up his wound, he finds his wife bound and gagged and his daughter has been taken. He goes out to the garage and you can see his LEFT shoulder is now bandaged. (00:58:50 - 01:01:55)