To me Avatar crossed the line that divides "a creation" and reality. There was no suspension of belief required to become immersed in Avatar's world. I felt very at home with Avatar since old friends of mine in the form of Hayao Miyazaki's films showed their influence in the same manner that Akira Kurosawa's films have influenced George Lucas and many others. If you liked Avatar and have not seen the works of Miyazaki indulge yourself with Nausicaa of the Valley of the Wind), Laputa: Castle in the Sky , and Princess Mononoke.