And loved it! I was surprised that I did. I hadn't planned to see it as it looked like it would be an "effect movie" but then two of my friends raved about it after seeing so I thought I might as well.
Yes the effects were good but they weren't in your face. The story line may be a 'classic' but there is a reason that story line keeps being used. It works. I thought the characters were well acted and I found I cared about what happened to them. I loved the soundtrack.

Definitely worth seeing, big screen and 3D if you can!

I really liked the soundtrack. I went to see it with Zotz, and he griped about how it was so closely tied to African history. My response: "Nine-foot-tall blue alien catgirls dressed in feathers. Don't tell me you didn't like it."

Loved it. The 3D version is great. I especially like the landsapes, and in the credits it was fun to notice that WETA did the special effects, as they did in the LotR movies.
Unfortunately, I could only watch it in German (from Germany myself), but as soon as the DVDs are available, I will watch in English.
This whole concept of a forest interlinked is fascinating, I think. I wonder how that works biologically? And as Honu_Wahine wrote, it would be interesting to learn Na'vi.
I'm probably going to watch again for the fun :).
Elorie

Doesn't mean I liked it particularly. But then again, as a film student it take a lot to switch my brain off.

I've actually seen it twice, once in 2D and once in 3D afterwards. I have to say, it's one of those films that you MUST see on the big screen, because at home you're going to loose half of the detail. It was my first film in 3D too, and I have to say that it's definitely worth it - for the CGI bits. The technology still needs some work (particularly with things in the very front), and it looks a lot better applied on the CGI then on the actual footage.

However, I just know in twenty years people are going to be looking back on it and going "... what's so special about the graphics in this? They're awful", and unfortunately that's about the only thing that makes it special at the moment because the plot is so horribly over done. I actually thought that the characters were quite good (vaguely well explored and pretty well acted), and that it was well written, but I don't think that that's enough to save it.

So there we go. Worth seeing, but it won't age. In my opinion. :3 I am, however, waiting for the million and six DVD copies so I can get the one with the most extras on. *_________* Some of the behind the scenes stuff is going to be epic and I can't wait to see.

Eeeeeee! A mini-me! Heheh. Sorry 'bout that. My name's got an underscore in it though.
My first thought on coming out of Avatar(in real 3D, no less) was "Quarritch got shot!" And I even invented a dance to go with repeated chanting of the above quote. I got a lot of strange looks.
The best part of the movie was the fact that Cameron hired a team of linguists to make the Na'Vi language(rumor has it, there's a dictionary in the works)... I want to learn Na'vi now.
BtB, I started a second mission in this fandom, and the mini just happend to be an adorable little mini-Turok. It's so cute...!
Honu_Wahine

I mean, the special effects were gorgeous, but the plot was pretty cliched and predictable. And then there are the Unfortunate Implications, like that Jake is one hell of a Mighty Whitey. It wouldn't have been so bad if Jake hadn't been the one to ride the really badass lizard and unite the tribes and marry the chief's daughter, but as it is ...