Continuity: A little way into the film, Alex is talking to his mum in bed whilst she is applying lotion to his chickenpox. One moment his shirt is open, the next it is buttoned up and closed, but there was no time for his mum to do it up, it happened in a split second.

Continuity: Alex rings the bell to get his Mom's attention and the box's position changes between shots.

Continuity: After Alex calls the police the first time, his mother herds him into his room. When they first enter there is a shot of his bed, the top pillowcase's open end is first facing right. Then there is a close up of Alex and the open end is facing left. It continues switching to the right whenever the shot is from farther away, to the left when it's a close up of Alex.

Continuity: The pile of clothes that falls onto the remote control car changes between shots.