Don't watch it. It's too late to teach James Cameron a lesson, but at least you won't have to sit through all three hours of his boring attempts at sensory overload and political activism. "FernGully in space" isn't really it. It's more like "Dances with Profoundly Stupid and Unsubtle Racial/Political Bullshit."
Even the Vatican hates this shitty movie.
Armond White says this in his review: "Avatar is the corniest movie ever made about the white man’s need to lose his identity and assuage racial, political, sexual and historical guilt."
There's really nothing else to say. Fuck that movie.
It's also pro-animal rape.