This is a must see in 3D! Very well done...and thankfully, they didn't go overboard with the 3D effect. Other 3D movies constantly use gimmicky things to fly objects at the audience just because they can. Not Avatar, the 3D was a nice subtle effect that really does enhance the experience.
The plot line is pretty predictable. Basically Star Wars meets Dances With Wolves...but, it still is compelling.
Does it live up to the hype? I think that it does. I would definately see it again.
If you liked the Blair Witch Project, you'll love this one...it's not gory, but it will make your squirm in your seat. Just make sure you can sleep all the way through the night, otherwise you'll freak yourself out!