I saw Avatar this past weekend with my wife. Not the 3-D version. The movie theater near my wife's hometown in rural Ohio just had the regular 2-D version. The special effects were very cool. The characters were one-dimensional and the plot was predictable. But it's a fun, shut-off-you-mind, kind of adventure movie.
Though, this opinion is apparently the most wrong one.
There are only two approved interpretations of this film:
1) It Changes Film-making Forevah!!
2) It's Yet Another Example of Our Horrible Racist Culture!!
Update: This is the best (and funniest) review of the movie that I have read. From The Filthy Critic.