Film, like all art forms (and I like to look at it as an art created by artists, not as entertainment products created by a corporations), can not be entirely separated from politics. I just don't get why so many people hate on films that decide to do it honestly and upfront rather than try to be tricky and subliminal. Wall-Es political undertones were honestly and subtly integrated into the story by the filmmakers and were not Disney propaganda. Even Jaws (Vietnam) and Star Wars (Cold War) had political context. I find it far more grating when films try to "sell" themselves by just giving people what they want to see and what will make the most money. Let's agree to disagree.
As for 3D, I saw UP and 3D and loved it. I'll definitely see Avatar in 3D just for the spectacle, but I'm not sure I like what Iv'e seen in the trailers.