Visible crew/equipment: When Roger hears Jimmy's laughter he follows the sound upstairs. Then, while Roger is in his late aunt's bedroom he grabs hold of the closet doorknob but decides not to open it, and as he leaves the bedroom the moving boom pole casts a shadow on the wall beside the closet door. (00:27:40)
Visible crew/equipment: After the dog digs up the Witch's hand, when Roger repeatedly shouts, "Stay!" the dog bolts, and as the canine runs out of the yard, we see there's someone standing behind the tall bush as the dog turns toward this person. Then, when Roger fails to catch the dog, as he tries to open the car doors, the reflection of a crew member is visible on the car's rear window. (00:58:40)
Revealing mistake: While Roger is in the bathroom he hears banging, and when he opens the door he sees the gardening tools poised to attack, and in the shot from the bedroom facing Roger, we can see the stunt wires attached to the hedge shears as it hovers in front of the door's wood casing. (00:44:35)
Revealing mistake: Later into the film Roger realises that his aunt's paintings hold some significance to the whereabouts of his missing son. He removes a cloth from the top left of a painting revealing an image of his son trapped in his bathroom cabinet. Note the cabinet door is the wrong way round to the one in his bathroom.
Continuity mistake: When the Sandy/demon tries the blow Rogers brains out he opens the bathroom door containing the 'floating garden tools'. The hedge cutter shoots towards Sandy/demon lopping off her head. Next scene Roger picks up the head placing it in a bin bag, but there's no blood, but there was when he shotgunned a hole in her from an earlier scene.