Continuity mistake: After Megan dies, for real, Jessica tells the others that they loved Megan and Megan loved them. Her robe opens and closes between alternate shots.
Factual error: When the guys first set up the website to accept submissions, the year is 1997. We see a shot of the computer screen which displays that they are running Windows XP, which wasn't released until 2001.
Continuity mistake: After escaping Bean Annex on the motorcycle by going off the ramp, Kylie turns back, sees the wolf and does a double take, and tells Mr. Fox "don't turn around". But when everyone looks at the wolf in the next shot when the motorcycle has stopped, they're looking off to the side of the road, not behind them. (01:11:20)
Continuity mistake: In the scene where Bruce and Andy are hiding from Animal Control with the dogs, the two Animal Control people step on the "Bone Sweet Bone" pillow and leave a dirty footprint. When Friday goes to get it later, it is clean.
Continuity mistake: At home, the first day Hachi fetches the ball, he is either standing on the sun or on the shade, depending on the shot.
Continuity mistake: Claire sits on a blanket and empties a bag of stuff on it. Then it seems empty when she takes it from the ground to hand it over to Henry. The stuff would have sounded and the blanket is to light when she takes it from the ground to hand it over to Henry.
Continuity mistake: A spirit knocks Christine over and gives her a bloody lip. Her boyfriend tends to her lip, which is very swollen. As she sleeps, there is a close up of a fly going into her mouth between her lips that are not swollen at all. After she swallows the fly, she sits up and her bottom lip is swollen again. (00:37:05)
Other mistake: When Tinker Bell constructs a boat with the playing cards paddle wheel, she uses a clip and a rope to make sure the paddle wheel doesn't start turning. However the rope would only work at stopping the rotation if the wheel turned backwards. Since it turns forward, the rope shouldn't be able to stop the rotation.
Continuity mistake: While Sam is talking to Trudy in the bank about the burned church, the name tag on the door in the background when the camera is focused on Trudy is there, then it isn't, then it reappears again throughout the scene. (00:35:30 - 00:36:00)
Continuity mistake: During the shoot-out at the Guggenheim, each of the assailants is using so many bullets that they would have needed huge bags to carry all the magazines.
Continuity mistake: At Jenny's birthday she receives two dictionaries, and one is unopened (the one from the boy). After David arrives with the presents, Jenny says that there's no space on the table, and then we can see both dictionaries are without the wrapping paper.
Continuity mistake: When Seth Rogan and Adam Sandler are driving back to L.A. the vehicle stick shift is in park. When they arrive in L.A. Adam Sandler shifts it back into park.
Continuity mistake: People are often shown listening to the radio at completely different times of day to the times shown on the boat.
Character mistake: Candy's full name is Candace Washington, which is referred to in the movie, yet when she is released early from prison, the correction officer calls her Candace Collins.
Continuity mistake: In the scene after Black and Cera become guards for the city of Sodom, they are told to line up in formation. Cera's character claims to not have a sword but when they are walking outside to line up you can see he has a sword in his scabbard.
Continuity mistake: When Rebecca is trying to get her papers out of her bag, Luke holds his hand out for her to hand them to him. The shot changes as Rebecca turns around, and suddenly Luke isn't holding out his hand anymore.
Continuity mistake: In the scene where Babe Ruthless is the jammer in the last seconds of her first derby she scores 4 points, as the announcer is telling the spectators, the shot goes to Babe skating around the track with arms in air, and the jammer star helmet cover she was wearing is missing. In the next shot she skates up to her coach and the helmet cover has reappeared.
Other mistake: When Abby and Mike are making out in the elevator, the elevator door opens up to what seems like a board and then the shot goes back to them and back to the open elevator door with scenery outside the elevator.
Factual error: In the movie they search for two matching rings, which contain geographical location of the treasure. The rings were casted in 1589, and uses Greenwich as Prime Meridian. This wasn't established however until nearly 300 years later in 1851.
Factual error: Prince Albert was not really wounded in the assassination attempt depicted near the end of the film. Eyewitness accounts differed as to whether he pushed Victoria down to protect her or simply dived for cover himself, but neither of the two bullets fired struck either of them.