FeedBack PlayBack is a dynamic film re-editing and viewing system. The users’ physical state determines the visceral quality of scenes displayed; immediate reactions to the scenes feed back to generate a cinematic crescendo or a lull. We use material that is rigorously narrative, formulaic, and plentiful: the action movie series Die Hard, starring Bruce Willis. A narrative sequence key breaks any given Die Hard movie into narrative elements, corresponding clips were collected from each of the Die Hard movies. Individual clips fall into high, medium, and low action/arousal categories. The user is seated, and places his or her hands on a Galvanic Skin Response (GSR) detection panel (GSR readings are the same kind of data collected in lie detector test). After calibration, the movie begins showing, and clips are displayed depending on the user’s level of arousal and engagement. The narrative sequence is maintained, though the clips are pulled from any of the movies.