I haven't seen a post for this yet, so I figured I'd start one. Before I saw an ad for this movie, I'd never watched the show. The preview looked pretty awesome though, and I found all three seasons on Netflix so I decided to start watching it. Despite the fact that it's geared more towards kids, I really enjoy it, and I'm pretty excited about the movie.
I'm not super upset about the "racebending" of the film, but it does bug me a little bit. Mostly because it seems weird that the two characters that are actually dark skinned (Katara and Sokka) are being played by white actors, and that the Fire Nation cast members are being played by Indian actors when in the series they were all very light skinned.