Continuity mistake: At the beginning Ava shoots the man's phone out of his hand through the car window. When the car drives away all the windows are intact.
Continuity mistake: When Kat and the protagonist have dinner, his hands swap between crossed or not depending on the shot. (00:28:32)
Continuity mistake: When Cecilia is talking to Adrian at the dinner table towards the end of the movie, the food on the plate is situated differently from shot to shot as they converse.
Continuity mistake: In the intro, the woman shimmies off her shirt, which pools on the bathroom floor. She finds the obligatory corpse, screams, and gone is the shirt from the floor. (00:02:00)
Continuity mistake: When Marcus sees his baby grandson, a nurse in the background is picking up a white diaper. In the close-up the diaper is now blue. (00:03:35)
Continuity mistake: Anne Heche's jacket changes color from brown to pink, and her wool hat that had blood and coffee on it, is back on her head after being thrown away. (00:40:00 - 00:44:00)
Continuity mistake: At the market, Lee picks out five pieces of fruit (one apple and four oranges?), tears a produce bag off, and walks away. He takes a few steps off-screen, and he is next seen going around an end cap and walking down an aisle, with nine pieces of fruit in the produce bag. (00:01:36)
Continuity mistake: The amount of rain on The Man's shirt is relatively light when he reaches the doorstep but his shirt was saturated before he even started going up the sidewalk. He was in the house for a couple of minutes to kill the two people and set the house on fire (not enough time for his shirt to dry) yet his shirt was almost dry when he exited the house. The Man's shirt got soaked again on his way to his truck. The shirt looks dark blue when saturated with rain but light blue when it is dry. (00:02:53 - 00:03:51)
Continuity mistake: SPOILERS: During the final scene, when Samuel L. Jackson is "puppeted" to lift his arm up to make it look like he's pointing a gun at the SWAT team, the number of laser-sights visible on his chest changes between cuts. In the wide-shot, there's only three, but when it punches into a close-up, suddenly there are five.
Continuity mistake: When the girls are standing on the beach with the flares to guide in the German aircraft they are in two rows just a few metres apart. The view from the aircraft shows them much further apart, wide enough for the aircraft to land between them.
Continuity mistake: The characters are on a tile floor that has one yellow tile visible among the black and white tiles. The next shot they're in a different spot on the floor with two yellow tiles visible. (01:22:10)
Continuity mistake: They travel without their helmets but when they are about to go underwater they magically appear.
Continuity mistake: Bernice's bangs go back and forth between having a small section separated from the rest to not separated. Before she kisses Thomas, her bangs are separated, but combed together when they are done kissing. (00:21:56)
Continuity mistake: While on-stage addressing the crowd at the Apple Festival, Vivian's long hair is in various positions. On her left side, a long section is in front of her initially, then in back. On her right side, her hair is either distinctly split (some in front, some in back) or flows around her shoulder/side. (00:09:43)
Continuity mistake: The fragments from the truck's taillights that Cassie smashed with a tire iron were obviously "neatly rearranged" (and looked resized to be more uniform) before showing them after the man drove away. Cassie hit the outer sides of the rear taillights and fragments of various sizes scattered, so all would not settle close together along the bumper. One large fragment from the passenger side flew past Cassie behind the truck and landed about three or four feet away but was not there afterwards.
Continuity mistake: The grilled cheese sandwich was charred while it was still cooking, but not when Jason's dad served it to him. (00:02:00)
Continuity mistake: The position of the dead (imposter) security guard's head over the barbell changes. When Gus says, "Jesus, he's dead", the security guard's neck is over the barbell rail, the top of his head is touching the floor, and his face is toward the front of the screen. When the camera goes to the opposite side of the dead guard, his head and neck are raised (and apparently no longer being supported by the barbell - or anything else). (00:28:28)
Continuity mistake: When the Homeland Security guy is sitting in the lobby in Vancouver, Canada, a girl and another man are walking behind him and across the lobby in the wide shot. But when it zooms in on him, the same people and more are walking behind him again as if they never were crossing the lobby. (00:28:45)
Continuity mistake: A vast majority of the movie occurs over the course of a single day, so it would be expected that Becky's hair stayed about the same. However, there were frequent fluctuations in Becky's hair's length, how her bangs were arranged, and color (whether the blue streaks could be seen at all or how much at a given time, and if she had dark roots on the top of her head).
Continuity mistake: When Nick leaves to deliver presents he walks out the door and you hear the door close. When his wife goes after him with the flask you see him opening the very same door he's just walked out. (00:24:50)