I saw this today at the Imax at the liberty science center. Incredible seeing the movie there and well worth the money in my honest opinion.
IMAX is fantastic, far superior to the 3-D craze that's now run rampant in Hollywood.
I heard that select scenes in the next "Star Trek" and "Hunger Games" movies will be filmed with the IMAX camera, so maybe it's picking up some steam.
But I'm glad to see others here have checked out the movie in real IMAX. One of the few worthwhile things about the area I live in (central Pennsylvania) is that we have a genuine IMAX theater in Harrisburg (Whitaker Center for the Performing Arts). Checked out TDKR on opening night, and the IMAX scenes were mind-blowing.