How the Rotating Corridor Scene of Inception Was Filmed

Remember the zero gravity fight / rotating corridor scene in the movie Inception? How did they film it?

Director Christopher Nolan explains (hint: they actually built a real rotating set):

... I spent just a couple of minutes on this set while it's rotating and what it does to your brain is extremely difficult to operate ... your whole sense of up and down and your sense of scale and your sense of orientation completely dissolves when the set starts moving.

Have You Seen This has the clip: Link