Visible crew/equipment: In the scene where Adam walks around his apartment with his camera (because the lights were out) the filmmakers put lights in the set so the actors wouldn't walk into walls, and also letting the audience see what's actually happening. In the movie, though, there are supposed to be no lights on at all. However, just before Adam opens the closet door with Jigsaw in it, you can see the reflection of one of the set's lights on the top of Adam's camera.
Visible crew/equipment: At Barbara and Phil's house, just as the hooded zombie bites a chunk out of Phil's neck (before Shaun leaps over the car hood) the black mat with two long white marks is visible on the pavement, behind the second zombie (beside the car). It's gone in following shots. (00:46:30)Super Grover
Visible crew/equipment: During the briefing Weyland says "But it's not on the ice, it's two thousand feet below it" it cuts to a shot behind Maxwell with an overview shot of the crew. If you look behind Maxwell you can see the tip of a head moving into picture. In the previous shot we could see no one was standing behind Maxwell, and it couldn't be Sebastian cause he went back to his seat. (00:07:55)Mortug
Visible crew/equipment: When Susan enters the building's stairwell, in the overhead shot you can see the reflection of the crew or equipment on the banister. It can't be Susan's reflection because she is relatively still, yet the reflection is moving and it is above where she could cast a reflection.
Visible crew/equipment: In the scene where the team are searching for the killer, an overhead shot of the town shows some sort of a rain-making machine in the upper right hand corner of the screen.
Visible crew/equipment: After making love with William in the bedroom upstairs, Annabelle is sitting on the bed. The closet door creaks open and you can see an arm holding a stick move back into the closet after pushing the door open. It is visible just to the left of the chair by the closet door. (Film was viewed on The Movie Channel.)