Just got back from an IMAX viewing of Superman Returns. Fantastic audio experience. Great use of surrounds and LFE. One particular great subwoofer moment I'm looking forward to on DVD is when a giant column of rock falls to the ground while Lex and Kitty are running away (if you've seen the movie, you know) and lands with an awesome, flat, loud and pressurizing THUD.
The IMAX 3D and video quality-
I thought the 3D effects were at times gorgeous and at other times unnecessary.
The gorgeous- there is scene where Clark as a young man is practicing his skills on the farm. He suspends himself in the air just a couple feet off the floor (think David Blaine, only horizontal) this was spectacular as it appears his legs and torso are projecting into the audience as the camera angle changes.
The second 3D scene is when Superman rescues a space shuttle and a 747 used to piggy back it into orbit. This scene is nothing short of EXHILERATING. IMHO worth the price of admission alone. I don't want to give anything away, so I'll leave it at that.
Another is when a boat had sunk and there was debris rollicking with the waves, a couple times I caught myself leaning back in my chair from reflex as they came toward the camera. Also is very nice helicopter flying over the ocean, I felt like I just reach out and grab it (my two sons did try, just for S&G's).
The fourth 3D scene is at the end of the movie and shows Superman flying around Metropolis at night. Gratuitous and unnecessary. Anti-climatic when compared to the previous three.
I didn't notice any "air brushing" as previously mentioned. Nothing looked fake to me. IMO the PQ was outstanding (should be for an IMAX anyway).
What did kick some arse in 3D was a preview of "Open Season" a CG animation flick coming soon. WOW! You will get "two for flinching" on this one.
Plot and story line? I give it a B. I think this movie could have been a good 15 minutes shorter. I don't like this policy of character and background defining that remains true to the original story. By now everyone knows Superman comes from the planet Krypton, has the Lois thing, etc., etc. A total waste of time is the segment where Superman apologizes and makes it up to Lois for leaving in the first place by flying her around, borrrrring.
I'll buy the DVD and skip that chapter.