Warning: Spoilers Ahead.
In the movie when the main character reaches the center of a black hole he finds himself suspended in time, trapped behind a window, gazing into the past. In this scene he is floating with bookcases surrounding him in a infinite-like pattern.
Anyone would be justified to assume the majority of the set was computer generated; it was. But surprisingly, a good amount of it was actually physical. Below are behind-the-scene shots of the actual set. Thanks to TheFilmStage.com
I love being able to see the behind the scenes shots of sets and thought these were worth sharing.