I loved this movie. Seeing it in 3D, it's breathtaking and certainly exciting. I am not kid, I'm approaching 60. Some have said it's for young people, but I don't agree with that. Some have also said it has taken a lot from other movies. I did see some similarities to the movie The Emerald Forest, actually. But that movie wasn't science fiction. However, the world in the Avatar was rather like the Amazonian Rain Forest in Emerald Forest. Nevertheless, it is worthwhile. Great entertainment. And for younger people seeing it, maybe it will get them thinking about the way our civilization has tended to impose ourselves on indigenous peoples.