Goofs

At the 56 minute and 35 second mark a police car is shown while driving and the Doctor (Tate Donovan) is supposedly shown sitting in the backseat behind the driver's seat. However, there is a different man (substitute) in place of Tate Donovan. And it's easily noticeable. At the 56:39 mark Tate Donovan is shown in a close up shot from that rear left seat position. He must not have been able to be at the initial filming of this scene so later did a separate solo filming of this shot with him in the police car (and to look as if he were there with the other three people).

At approximately 44:20 Billy is up in Virginia's room. Virginia is leaning over her comatose roommate explaining things to Billy. The closeup shot shows the roommate's blanket folded down near her waist. After Virginia quickly steps away from the roommate's bed without touching anything, the wide angle shot now shows the blanket pulled noticeably higher over the roommate's stomach.