Avatar is by and large on of the biggest hits in the history of cinema. With mixing some incredible 3D effects and creating some crazy worlds the film touched on new and amazing territory. Avatar is a great film that touches on a million subjects from the environment to relationships between different beings. The general social commentary of that film only enhanced the incredible visuals, a rarity in film.
A funny fact about this classic is that it was almost released ten years before. The film was due to be released in 1999 but at that time the budget of the film would have been a staggering 400 million dollars. One has to wonder what Avatar would have been like if Cameron had gone ahead, ten years and a different cast may not have gelled nearly as well.