Continuity mistake: When Skeeter arrives at his sister Wendy's house, he walks into the kitchen and meets Patrick and Bobbi. He says he has some presents for Bobbi, and Patrick turns around and leans his arm on the back of the chair. In the next few shots his arms keeps moving from resting on the back of the chair to down in his lap.
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: 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)
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.
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.
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: 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)
Continuity mistake: When the van stops and Fish's body is sent flying away, the position of his body on the ground differs between shots.
Factual error: Towards the end of the movie, George W. Bush is seen walking through the Cross Hall of The White House towards what is in reality The East Room. Behind him we see a large staircase with a plant next to it on the other end of the hall. These should not be there: that is where the door to the State Dining Room really is. In the next shot we see W. coming upstairs from a winding staircase that doesn't exist.
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)
Revealing mistake: When Louis is trying to get Lester to apologize to Cleo after hitting her, lots of extras on the sidewalk and across the street can be seen watching the whole scene being shot.