The portion of the movie that I saw was astonishing, with 3D effects that enhanced but did not overwhelm. I really got the sense of being IN this extraordinary world. Unfortunately, the IMAX broke down with about 40 minutes remaining in the movie. After fiddling with it for about 15 minutes, staff at the Barrett Commons 24 informed us that it could not be fixed. Welcome back to Earth and AMC theaters. We were offered only a refund OR free passes for a future AMC showing, and the line for both was as long as the one to get into the movie. This theater is difficult to find, and the traffic flow is horrible. I hope to see the end of the movie sometime soon (though not at this theater, and maybe skipping the IMAX).