Goofs

When Thomas bends down to remove the cuffs from Angela's ankles, she is wearing shoes. After she stabs him and he is sitting astride her, the shoes lying next to her - but after he gets up and asks 'Why did you do that?' the shoes are miraculously back on her feet.

The blood spatter on Angela's face constantly changes throughout the end of the movie.

When Tom tries to break the window glass, the arrangement of chairs change during his attempts.

When Angela is fighting off and killing the dog in the car, the retractable rear passenger seat-belt is directly behind her back and completely shielded from the blood spatter except for perhaps the top few inches. After Angela kills the dog and eventually steps out of the car, the seat-belt becomes visible and it's covered in large, soaked-in, blood spatter spots all the way down, where her body was shielding the dog's blood spatter throughout the entire scene.

In the scene where Angela is in the security office and tom gives her a plate he puts cranberry on her plate. When Angela tells him about her boyfriend there isn't cranberry on her plate anymore.

911 would call back immediately after a hang-up.

Thomas says to Angela, "bon appétit." It is pronounced 'appe tee,' with no 'T' at the end. This is a common mispronunciation by US Americans.

The parking lot stand post would not read 'P2,' but rather the exact parking spot on that level.

When Angela tries to access the Ps elevator lobby, she does so by turning the knob. All such parking level lobbies are accessed by card key. this is later evidenced when the security guard uses his card key to provide her access.

Angela could easily have been unaware of the necessity for a card key: (1) She turned a knob to open the door going in one direction, so she could have expected to do so going in the other; (2) She was in a hurry and preoccupied with being late, so wasn't thinking; (3) She just might not have known better--not everyone in the world would be familiar with the do's and dont's of security pertaining to parking facilities.

One would not use a keyboard to communicate with someone near an enterphone system (entrance to the garage).

Angela would not be knocked out from the stun gun. Stun guns do not cause unconsciousness. However, pain, shock and fear can result within loss of consciousness and when combined with the effects of such a device may certainly result within a physical shutdown as demonstrated by Angela.

Near the beginning, Angela comes around a corner and bumps into one of the security guards and calls him by his real name (the actors name) rather then his character name but calls him by his character name later on at the desk when she is waiting for the cab.

Karl and Angela surprise each other, and he says he's surprised to see anyone in the office so late on Christmas Eve. Riding down in the elevator, a couple get on, but Karl is not surprised.

When Angela stabs Tom's eye, he closes his eye. After that we can see his fully-opened eye, and the eyeball is nearly out of its socket. After he pulls the metal out of his eye, it is closed again.

When Angela stops the elevator, Thomas uses a fire hose to flood her elevator car. When Angela reengages the elevator car, you can see the water draining out of the car as it drops from the outside. In reality there is plenty of room on all four sides of the car for the water to drain down. The elevator car would not have filled up with water the way it did. The water should have drained out the storm water drain at the bottom of the shaft.

When Tom is trying to break the window with chairs in the rent office, we can clearly see the window breaks before the chairs hit it.

When the lights in all garages were put out, the CCTV monitors still display lighted parking.

Angela's BMW had an outdated New York State license plate. The Red, White and Blue with Statue of Liberty graphic was phased out in 2000. All of the other cars in the film had the correct (and current) blue and white NY license plate which New York required all vehicles to change to by 2002. Because many of the cars shown in the film were 2005 or later models the film was set in at least 2005 so there is no way her car could have still been using that style of NY license plate.

When Tom first enters the Car Rental shop looking for Angela, after a shot of his stun gun the camera goes to a shot of Tom as he walks across the lobby of the shop. You can very clearly see the shadowy reflection of a crew member in the window behind Tom moving around.

In the beginning when she's trying to use her cell phone, it clearly says "Telus" on it. Telus is a Canadian cell phone company that doesn't provide service to New York City. Technically she could be roaming, but it seems unlikely.