Sully was wearing a U.S. Marines t-shirt when he got off the transport on Pandora--I think it's visible on the trailer.

I'd say that he copied Andrew Jackson's Trail of Tears, which pre-dates Fern Gulley by a few years.

I had a pretty good idea about the plot--and alleged liberal agenda--before I saw the movie. So I went in and tried to watch it from the perspective that Ribisi was an Andrew Jackson type character, the Colonel was sort of a Nathan Bedford Forrest, Sully was an Abe Lincoln, Sigorney Weaver was a Whig or Republican, and the Na'vi were American Indians. That is, the evil corporation represents democrats. I don't think that there is anything inconsistent in my interpretation. And one other thing, I didn't think that the Na'vi were primitive, rather highly organized with sophisticated networks.

She could be hot if she would only fix that Eddie Munster hair-do.