Cinema is a medium that utilizes time. The audience experiences time as it plays out on the screen. [...] the shots of the train [objects] moving backwards can be thought of as the expression of my cinematic query. The reversal of time is conceptually possible. I'm not quite sure if it's conceptual or cinematic to show reverse motion, but thought it was more cinematic because, in other media, the concept of time is not essential. Time matters in film.