When Tyler is having dinner with his father and Ally, Ally is shown wearing a wide neckline red dress with no sign of a bra. In the next scene, when Tyler storms out of his apartment, and Ally is trying to open the jammed window to get some air, the black straps of her bra are completely visible.
In the scene when Tyler and Aidan are walking down the street with coffee, after Aidan is talking about how he sold a toothbrush. Tyler puts a cigarette in his lips, the camera changes to see Aidan speaking and the cigarette is gone, it then reappears in the next shot.
During the earlier part of the film when Tyler (Robert Pattinson) is walking with Aiden (Tate Ellington) Tyler puts a piece of a sugar packet that he tore off in his mouth during one shot, yet when they cut to behind Tyler you can see the side of his face with no sugar packet in his mouth.
During the dinner scene with Ally, Tyler and Charles one minute Tyler has his wine glass in his hand, and the next shot the glass is on the table then back in his hand again. Then the last shot for that scened he takes a drink of the wine.
On the very first scene, after grabbing the purse from the woman, the villains board the subway train and the doors close for departure. Then somehow the doors open again so that a villain can shoot her.
Once the doors are closed in a subway, there is no way to open them manually without alerting the engine. But in this case, after the shooting, doors get closed, and without any investigation done as to why a door was opened, the train departs.
The goof item below may give away important plot points.
The top of Two World Trade had an outside observation deck that was missing from this visual. Also when the camera pulls back to reveal the exterior of the building, the aluminum ribbing is different than the original.