During the final scene when the mover Victor breaks open the locker to retrieve the case, when the camera pans out to a wider view the locker is clearly no longer broken but is closed and in perfect condition.
After being freed from the trunk of a car during the shoot-out at the construction site, Nick picks up two guns. He is seen picking them up, holding them in the elevator, and still holding two when he presses against the wall, but as soon as he fires his first shot, he is only holding one gun with both hands.
Cassie ties back her hair with a string, but as she and Nick walk away from the restaurant she also has a hair clip in it.
At about 1:42:50, when Nick drops the syringe, it falls between the gap between the glass panels, but when he wakes up, it is lying on top of the panel.
(at around 1h 06 mins) When they look at the building that is represented as a question sign on the drawing, there a helicopter to the left, in the next scene is the helicopter not to be seen again.
Nick's flashback of Henry talking in the restaurant does not match up to the original scene. In original scene the floating gun is pressed to Henrys cheek however in the flashback the gun is pressed to his temple. Secondly Henry refers to the drug as "the stuff" in the flashback but he only referred to the drug as "it" during the original scene.
- But memory isn't perfect. It's very likely that Nick remembers some details wrong.
Carver refers to Kira as their "patient zero" a couple of times. But the term is correctly used to mean the first person who gets sick at the outbreak of a disease. She's not a "patient zero", she's their first successful test subject.
- Carver probably used the term metaphorically and not literally.
In the opening scene, the maid squeezes her body to the left wall to allow the camera to track through the hallway.
In the warehouse fight scene, when two men get thrown through a large red glass window, the glass shatters a few seconds before either of the men hit it.
At 40:14, Hook Waters says "I'd take it to Emily Hu". But in the credits, Ming-Na's character is listed as Emily Wu.
In Hook's introductory scene, he shows a girl his card-shifting trick. She requests "ace of spades", but her lip movements do not fit the dialogue.