 CONT: In the first half of the movie, the door in the living room  opens swinging to the right in one scene, then the in another scene,  it will open swinging to the left. This alternates back and forth  many times. One instance is when Tom calls home to tell his wife to  get the shotgun and starts running home. When she goes downstairs  the door is open, she shuts it (it was opening with the knob on the  right). But when Tom gets home and comes in, it opens with the knob  on the left!