Continuity mistake: In the beginning of the movie when Marty is tucking young Skeeter into bed, as Marty is sitting beside Skeeter's bed we can see the slatted blinds behind him are almost down to the bottom of the window. But as the scene comes to an end and the camera pulls back from out of the same window, the blinds are now almost pulled to the top.
Continuity mistake: During the Deathball Match, the booth window is smashed and Wernstrom gets knocked onto the court, however in the next overview shot, the window is intact and he is still standing behind it. (00:15:10)
Revealing mistake: When Ami's chest is being drilled by the "drill-bra" at the end of the movie, you can see blood flowing from her chest, obviously because of the damage the drills are causing her. Yet, later, you can see absolutely no cuts or marks on her breasts or upper chest, where the drills were penetrating her skin. The skin is simply soaked with blood.
Factual error: When we see the car John C Reilly is driving in, coming from Quebec, we see a license plate on the front of the car. Quebec does not have license plates on the front of its cars.
Continuity mistake: When Morris is drunk and the dean of the school almost hits him, the first shot shows him with a cigarette dropping from his mouth, but in the next shot from the side the cigarette is still in his mouth.
Factual error: The basketball rims used in the movie are of the modern basketball era with "breakaway" rims. Such a rim was not used until after 1979, when Darryl Dawkins broke his first backboard in a game against the Kansas City Kings in November 1979.
Visible crew/equipment: At around 75 minutes into the film (near the end,) the boom operator can be seen in the scene where Bart crashes the bar mitzvah with his mother, father and friend. The boom operator is behind Bart whilst he is dancing with his mother.
Continuity mistake: When Kate is speaking with the angel of the Sculptor in the grocery store about what her mission is, during most of the conversation there is a woman behind the Sculptor cleaning and organizing the orange juice. After the conversation when the shot shows the Sculptor descending into heaven, all the juice jugs that were on the floor are on the shelf and the woman cleaning is no longer there.
Continuity mistake: As Gromit tries to get to the window with the bomb, he is stopped by being hit hard with a large metal oven paddle which swings in from his front right side. When we see Piella holding it, there is a Gromit-shaped dent in it, but it is dented the wrong way, bulging outward on the side he was hit with instead of indented.
Continuity mistake: Tris tries to seduce Nick at the river by dancing in front of the headlights of his car. He decides to abandon her, and backs the car away. When he cranks the steering wheel clockwise and points the car up river to leave, the camera cuts to a shot of Tris standing by the river, but the headlights are still on her.
Continuity mistake: When Durell and LeeJohn are in the diner just before robbing the church, the toast on the table is to Durell's right. Iin the next shot, it's in front of him, and in the next shot, it's back to his right. (00:28:45)
Factual error: In scenes apparently in Japan, all the cars drive on the right side of the road. In actuality, the Japanese drive on the left side of the road.
Other mistake: It is crucial to the story that Peter is terrified of moths - but when he is led through the woods at knife point by Tracey, a large moth flies around both their heads for several seconds (lured by lights of the film crew) and he ignores it, being as it's an unplanned visitor. (00:42:30)
Factual error: In the scene when ADD is first leaving to go on tour, they drive past the Rock and Roll Hall of Fame and the bus driver announces, "On your left..." The shot of the museum as they drive by is the front. The road going by this way dead ends; there would be no way for them to get on the highway or a surface road. (Look on Google Maps. They are on East 9th Street going northwest.)
Character mistake: When Massie reads the IM from Kristen, she doesn't look at the past messages. Claire didn't delete the messages from the past.
Continuity mistake: While George W. Bush is walking along with his cabinet in Texas, on his ranch, Dick Cheney goes from walking in back of the group to being up front quickly and mysteriously. (00:25:00 - 00:26:20)
Continuity mistake: Torrential rain falls during the big shoot-out scene at the Ghost Market, but when Park Do-won is up on the rooftops, a 360 degree pan shot shows only light clouds that could never dump such rain.
Continuity mistake: When Eva is being brainwashed, her car is numbered '12.' During the brainwash she doesn't move from her seat, but when the brainwash is over, she comes out of a car numbered '03.'
Continuity mistake: In the scary door, the hay stack on the barn it diagonal, but when the aliens are attacking, the hay stack is vertical. (00:13:30)
Other mistake: Radio aerial visible on building. (00:09:40)