Ok, i'll throw in my 2 cent review. Visually this movie is stunning, you have never seen anything like it, on a movie screen. It alone is worth the ridiculous price of admission. I paid $22 for a pair of tickets in a hick town.
Story wise, it's no different imo than a cheesy summer blockbuster. A 10 year old could have easily written this. I'm astounded that they can throw a half a billion dollars into a movie and totally eat it with the script. Don't get me wrong I was in the minority with this opinion, I just thought it could have been so much better. I believe Cameron was afraid to detract in anyway from his visual masterpiece. Still a must see in a theater!
P.S. mines still better than his.