As the perp drags the girl into the cabin, he secures the door by turning a "Y" shaped stick, mounted beside the door. The very next second, in a long shot, the door closure is seen to be a much longer, straight stick mounted in the same position.
At 2:28 As he is varying a body. If you look closely at the center of the screen through the trees there is somebody standing. Wearing a green shirt and some type of hat.