I didn't have high expectations of "Tron: Legacy" and was just hoping for an entertaining show: lots of cool looking things on screen with the thinnest of plots to hold the excitement together. Seeing it in 3D IMAX was a novelty, I reasoned, something new to try out. My preconceptions were more or less accurate but were understatements of the reality. "Tron: Legacy" in 3D IMAX an experience more than a movie. I can't say that the plot was superb or the extremely well-written but nearly every other aspect of the film is excellent. The use of 3D is very well done and adds much to the movie, much more than I remember in "Avatar". The visuals are stunning, integrate well with and strongly develop the style of the movie, and are exceedingly enjoyable. Costumes and sets were similarly unique and impressive.
The surprise to me, though, was the the music and sound. This was more than good use of orchestral scoring; it was an embrace of synthesized, manipulated, stretched and compressed alteration of traditional music into a unique sound that, again, adds so much in defining the style and feel of the whole film. I don't feel that the audio overshadowed the visuals just that they were not neglected in light of all the effort of making a visually stunning movie. I'm tempted to buy the score of the film because it was so unique and powerful.
I don't think "Tron: Legacy" would have struck with me so deeply if I hadn't seen it first in IMAX 3D. If you have the option of seeing it that way I would recommend it; its probably the only way I would recommend this movie. In this way the movie is a work of art; the experience of seeing it will not be replicated well onto a more conventional screen and even less so into a home setting. It will be like the difference between an original oil and a picture of the same work in an art textbook.
Its hard to compare this movie to others because it is so much more of an experience than simply a movie. There are much better films out there that don't derive their value from special effects or visual spectacle. But its hard to say that "Tron: Legacy" is better or worse than any of these because its value is so much in the presentation. Pick your favorite movie and even if you were able to see it again on the big screen right now, it would be a completely different experience than "Tron: Legacy".
Maybe that's the best way to think about it. "Tron: Legacy" has brought back something special to the movies. You will either see it in its fullest form or you won't but there won't be any second chances. Once it leaves the theater, there really won't be any way to get the full meal deal. Its like performance art in that way; a one-time experience that can't be replicated. If you can afford the $12 to $15 per ticket I strongly recommend that make an effort to go see this. You won't walk away with inner contemplations about the plot or characters but you can't help to be entertained.
It is the best movie of little consequence I have ever seen.