Continuity mistake: Nicky's facial hair shows less growth at times, within and between scenes. In particular, the amount of hair above and below his lips is the most obvious, but the darker (longer) and lighter (shorter) hair around the bottom of his face is also noticeable, as is the presence or absence of hair on his cheeks. (00:16:25 - 00:16:57)
Continuity mistake: Last scene, camera front, he's strolling her back. Next view from behind, she's strolling his back. The front view, he's still stroking her back.
Continuity mistake: When Kip is parked outside of "Payless Drugs", the driver's side windshield is smeared/smudged but is clean/clear when he pulls out seconds later. (00:37:48 - 00:38:19)
Continuity mistake: At the beginning of the movie, the girl gets assaulted from the back: you see at first exactly from the shot from behind that the backpack she is carrying escapes her arms, but in the subsequent shot she is still holding it. (00:02:10)
Continuity mistake: Dr. Mitchell's tie was sticking out below the back side of his shirt collar when he approached the front desk but not a few seconds later when he was turning to see Carson or when the receptionist was handing him a doctor's white coat. Dr. Mitchell's tie extended below the back collar again when he was putting on the white coat. (00:09:15)