Continuity: In the scene where Jonnathan finds Cooper in the bathroom posessed, Cooper attacks John with a knife in his left hand. As Cooper lunges at him, John slams the door, but Cooper's left hand crashes through with little problem. But, there's no knife. The knife is now in Cooper's right hand.

Visible crew/equipment: In the opening scene where Johnathon is playing football, he's running with the ball right before he is tackled. You can see the camera crew's shadows on the grass running with him.