It is one hell of an amazing movie!
I once read a review for the movie, the title of which said: "Avatar is a movie, which cannot be explained. It is there to be experienced."
And when I saw that movie, I knew exactly what the reviewer meant. You need to let it touch your heart and soul to experience the profound imagination and concept of this movie.
Apart from the excellent performance, the Midas-touch direction, hypnotic locations and 3D technology, what I loved most about the movie was the concept, story and theme of the film. It was amazing and so realistic at the same time. I really cannot explain Avatar in words.