Near the end of the film when Linda picks up the gun and points it at Sean she holds the gun with both hands but does not cover the trigger but only after the clip of Sean is she then shown covering the trigger.
Towards the end, the girl is tied up in the backseat of the car. As the guy drives by, he sees her palms pressed against the glass with rope around her wrists. In the following scene, her hands are facing the wrong direction for her to have been able to do that, and she is tied up in a way that would prevent her from lifting her hands up to the glass.
When Jeff Fahey picks up Josh Holloway from prison with his car, the exterior shots of the car have no one in the passenger seat.