I saw Superman Returns on an IMAX screen with some scenes selected by the director in 3D. This is the new technology, you still have glasses, but they aren't red and blue, they are polarized at 90 degree angles. The effects in 3D were spectacular, and I thought the entire movie was great. Maybe the novelty of the IMAX 3D experience left me liking the movie more than I would have in a standard theatre, but I think I really liked it.