Continuity: When Lisa stabs the pen into Jack's neck, she stabs him in the side of his neck, however, when they show the pen and from then on, it's in the middle of his neck.

Continuity: After Lisa pretends to be reading a magazine to avoid the security guards who're looking for her near her gate, she spots Jackson and you can see two men sitting at a table eating lunch in the foreground of the shot. When Jackson sees her and starts running after her, both the table and the men are gone (Jackson runs through the place they used to be).

Continuity: After Lisa manages to steal a car away from the couple at the airport, we see her try to make calls from Ripner's cell phone. After the cell phone blinks "Low Battery" for the first time, we can see that she is wearing a seat belt. Lisa then swerves to miss an oncoming car, and we see her hastily fasten her seat belt, as if it was never fastened before.

Revealing: When Lisa kicks Jack causing her shoe to stick into him and for him to go falling down the stairs, you can see the face of Jack's stunt double.

Revealing: When Jack is falling down the stairs, you can see a pad on his back.