 CONT: When Dr. Cortner is sitting on the sofa talking to the blond  stripper, and the brunet stripper enters the room, two chairs can be  seen in the room, one is to the right of the sofa, and one in front  of the mirror. However in the next shot as the brunet stripper walks  in front of the sofa the two chairs are gone. Then one chair  reappears under the mirror when the strippers drop to the floor and  start to wrestle.