My 6 yr od grandson and I saw both Bolt and MvA and we were very impressed. 3D has finally become fully integrated with the story, and is no longer just a gimmick. Regardless of what the marketers choose to call it, it is close to perfect. And Hollywood is banking on it now, as you are alerted to put your glasses on during the previews because many of those are now in 3D as well. This could be as big a leap for the movie industry as color.
You've already seen this entire movie if you have seen: National Treasure, African Queen, Stargate, all other IJ movies, and read Lenigin vs the ants. It was fun in a vacuum, but pales up against any of the earlier ones, or the ones it ripped off. Some treasures should never be copied, even by, or especially by, the original creators. And Spielberg (what a great name that is for a master storyteller) has lost his magic touch, as everything in this movie is predictable whether you saw its ancestors or not.