Continuity mistake: When Priest and Georgina throw the molotov cocktails at Juju from the balcony, watch closely - right as Priest throws the second molotov cocktail and the camera cuts from a bird's eye to a ground-level angle, the position of the two men and the carpet they're standing on changes between cuts.
Continuity mistake: The main character is exercising in the gym and in the background is a man on the abs machine holding the handles above the grips. In the next shot he is holding the grips, and then next shot back to above the grips. (00:38:00)
Continuity mistake: When they reach the plant in Mexico and Richard is introduced to the plant manager and his right hand man, Richard points to him with an empty hand. In the next shot before he points to the other guy, suddenly his cellphone appears in his hand that he's pointing with. (00:17:00)
Continuity mistake: In the bar scene when Renee sneaks up behind Vivian, she puts her right hand over Vivian's mouth, then has her left hand on top of her right hand while covering Vivian's mouth; and then a moment later in a new camera angle, her right hand is over her left hand. (00:27:00)
Continuity mistake: When Phil heads to the Puppet Pleasure place early in the film, the positions of the shadows change around the vehicle parked out front in the close up, revealing the time laps between filming each shot. (00:06:30)
Plot hole: *SPOILER* Calvin's twin sister and mother were killed years earlier in an automobile accident. Calvin kept going to his doctor with "new symptoms", insisting there was something physically wrong. Dr. Collins told Calvin, "Your health issues aren't physical. I thought sending you to that support group would give you a better perspective." The doctor should have referred Calvin to a psychiatrist for a diagnosis and, if appropriate, the psychiatrist would recommend therapy or a support group. (00:10:15)
Factual error: Michael boards a commuter train at Grand Central, which then stops at subway stations at 68th Street, 86th Street, and 110th Street along Lexington Avenue. This is impossible.
Continuity mistake: In Alice's apartment the clock on the wall has the time as 8:40 when she is standing and kissing David. They have sex and Veronica comes over. Alice and Veronica talk and the clock still shows 8:40. (01:20:00)
Continuity mistake: Violet's mom is hot combing her hair at 5 AM; as she performs this operation on the left side, the right side has straight black hair all in front of the shoulder. When Violet tells her that dad is coming, she moves to the right side. Sanaa Lathan's hair now is suddenly all behind the shoulder. (00:05:20)
Other mistake: During the murder in the stairwell, an old woman opens her apartment door outward, and Varg kicks it shut. Apartment doors always open inward, as did Euronymous' apartment in the same building.
Suggested correction: Euronymous' apartment door opens outward into the hallway, at least in the final scene it does when he's trying to get away from Varg.
Continuity mistake: The police shoots one of the kids who were robbing the Nurse. The body is lying on the sidewalk when she says "No, no, I can..." to them holding her at gunpoint, but when Batista kicks the cops around, the body shifted further to the middle of the road - where it should have been to begin with. (00:32:50)
Continuity mistake: When Captain opens the bridge gate he puts his right hand to his chest. From the opposite shot it's down.
Revealing mistake: When the doctor with the satellite phone runs to the car, he is being chased by another member of the team, and of course the graboid. Look ahead of the graboid. The path it will take is visible.
Visible crew/equipment: During the opening while Ray and Maggie are driving at night, you can see the lighting equipment for the green screen reflected in Ray's glasses. And throughout the entire movie, these green screens and other production lights can be seen reflected in his glasses in several different scenes. (00:04:00)
Character mistake: Immediately after the crash, when Reeves is carrying his youngest child Sophie, the actress opens up her mouth, even though she has already drowned. (00:14:43)
Continuity mistake: Danica gets to work at the beginning of the movie, and her coworker passes her a folder. The folder keeps moving from under her arm to her hand, back and forth between shots. (00:03:00)
Continuity mistake: Valeria went to the first meeting with Alberto Rak at his place. In the following scene her mother Amalia enters her apartment bringing breakfast. Between takes Laura Morante picked up the tray from opposite directions, since the coffee cup switched from left to right during her walk from one end of the corridor to the other. (00:10:50)
Factual error: There is absolutely no way the university would have the authority to have the church torn down by a demo team when Dave and Pearce find them doing just that. Nowhere near enough time has passed for eminent domain laws to have been enacted. It often takes a year or more just for these things to go to trial, and there's a good chance the university would lose the case anyways.
Continuity mistake: Constance is hugging Mary. In the close up shot, Constance is wearing a round sky blue earring. In the long shot, the earring is not seen even though her ear is fully facing the camera. (00:27:45)
Continuity mistake: When Rick and Kirsten are at the game, just after they shout at one of the players, Kirsten drinks from her cup, but in the next shot, the cup is suddenly back in the armrest holster. (00:33:40)