When Jill first goes to see Dr. Vangard, as he starts to sit down at his desk, his left hand is on the arm of the chair. In the next shot, still in the process of sitting down, his left hand is now up on his desk.
Sebastian is playing the piano when Margie enters the room and asks where Jill is. He gestures toward the bedroom door with his right hand but the music continues without interruption as if he were still playing with both hands.