This movie rocked me to the core. It's visually amazing, and much like Jurassic Park there are times (much of the movie) where the entire screen is filled with computer generated imagery. Unlike Jurassic Park the characters and scenery are so alive and dazzling and for so much of the play time that your eyes never get a moment's break from being in awe. No visual element ever feels static.
Aside from this accomplishment, the story itself churns your emotions from start to finish, and the dialogue and flow are both elegant and clever. I think this movie is a must see for 2009-2010.
You can leave the 3D out of the equation. It doesn't add anything to the movie the way that Beowulf did for me. The 3D felt more like that of G-Force.