Firstly to say that I've only seen the 2D version.

For such a high profile film that had garnered so many favourable views I have to say this must be the worst (high profile film) I have ever seen.

I had not read the database before viewing the film but recalled the reviews on it's release. The first thing one has to say is the plot, as other have mentioned, is a direct lift from Dances With Wolves.

To quote Edmund Blackadder 'it was as predictable as a predictable thing can be predicted', something I was quite (un)happily doing throughout the film. It isn't even so bad it's good - although there a couple of unintentionally funny scenes (well I laughed).

The actors do the best they can with a very average script with Steven Lang as the main hate character in a destroy everything sort of way, played so over the top he could be a pantomime villain. It's not his fault of course, James Cameron directed him! The CG graphics/special effects look OK but gave me no real sense of warmth to the characters, I didn't find then innovative just a bit soulless.

If 2 and a half hours of overly blue CGI/Special effects is your thing OK but I found it a total waste of the time.