The bathroom window has three panes of glass. When David uses the towel bar to break the window, he breaks the center pane and then the bottom pane. A few seconds later, he appears to smash the bottom pane and then the center pane again.
When the officer is investigating the open motel room, he notices the broken TV first. However, on his way out of the room, the TV cuts on to one of the snuff films, and shows absolutely no signs of damage and works perfectly fine.
The officer finds the shattered TV in the first motel room he searches. The working TV with the snuff film is in the second motel room he searches after passing between the rooms through the shared passage door. It's the light from the working TV, as seen under the passage door, that draws the officer's attention to search the second room.
The officer finds the shattered TV in the first motel room he searches. The working TV with the snuff film is in the second motel room he searches after passing between the rooms through the shared passage door. It's the light from the working TV, as seen under the passage door, that draws the officer's attention to search the second room.
During earlier scenes in the motel room, David's shirt continually alternates between having a large patch of moisture on the back and being wrinkled but dry.
While David is watching the second tape, Amy is behind him, with her hair down and holding her head between her hands. But she actually puts her hair down in one of the next shots.
Early in the movie, when David looks out the outside door of the room, he leaves the door ajar while checking the banging coming from the door inside the room. When a long shot shows the whole room, the outside door is closed.
At the end she phones 911 again and the operator tells her: "an officer has already responded." In reality they would have dispatched another unit once they didn't get feedback from the 1st call out.
When Amy jumps into the blue BMW she starts it with a screwdriver. It has been proved that no post-1997 BMW is able to be started with anything other than an actual coded key, because of the immobilization system built into their cars.
When the electricity is turned off and on, the TV turns back on and the VCR begins playing again. In reality, they would both remain off until manually turned on again. Even if they could be programmed to start right up as soon as power is resupplied, the video would pick up right where it left off before. In the shots that show the TV as power goes off and back on, when the picture comes back it shows a different scene in the snuff tape, giving the impression that the VCR was running when nothing else was.
In one of the snuff films it is shown that the killers were banging a girl's head against the lights hanging directly above the bed. But in the room in which Amy and David are staying the lights are hanging by the side of the bed. It's possible that this was filmed in one of the other rooms, however.
When David discovers the trap door in the bathroom floor, the mat is flat over the door, however one of the bad guys had already been in and out of the room through the trapdoor. There would be no way for them to lay the mat back flat after the door was closed.
When Mason is giving David dimes, the first coin to fall into David's *empty* hand makes the same metal-on-metal clink as the others.
when Amy wakes up in morning and crawling towards David then one of those killer appears behind her.
next to him there is a mirror in which a crew man get visible.