 The scene on the roller coaster was filmed over two days.  Michael Rapaport (I) (qv) unfortunately has a fear of roller  coasters, and suffers from acute motion sickness, facts which no one  knew during the first days filming. By the second day, the crew was  prepared for this, and they gave him something to calm his nerves.  As a result, one can easily tell from cut to cut on which day a  particular moment was filmed by watching his face in the background.  His expression goes back and forth from apprehensive and nauseous  (the first day) to bland and oblivious of his surroundings (the  second day).