Mom and I loved it. 3D was appropriate, not ridiculous. Story is faithful to the book but leaving out a few details for time. When I was a kid I wanted to be in the first crew to go to Mars. Then the Challenger exploded and I grew older and that opportunity is gone, but there is still hope for a future generation and this movie and the book shows that going to Mars, while difficult, is something within our grasp soon, should we choose to pursue it.
Critics who didn't like this - I think they just didn't get it. Nothing to take seriously here - It is every young kid's fantasy to be a hero and save the world and get the girl etc. brought to "life" - very cute and right out of a 12-year-old from the 80's mind. Mom and I both enjoyed this.
The message of 'have courage and be kind' is good, but the other messages this fairy tale gives to girls and boys are definitely outdated. Except for an opportunity to make $ over the ridiculous Disney princess craze for young girls, I don't see why this needed to be remade.