After Charlie finds out that Mick beat up Leo, he goes to search for Mary. When she doesn't answer her dorm room door, we see him run into a white building. The camera dollies in towards the entrance and at the bottom of the frame you can clearly see the dolly track laid out.
Charlie: You take something apart and you see all its threads and you see that all of these threads have different meanings and you kind of examine how these meanings are imposed upon these threads. You kind of reveal the contradictions and inconsistencies and you see that there's no one truth expressed by that thing. You see that there's no absolute truth.