There was an earlier thread on this at the time it came out. There, like in Avatar, it wondered off on other issues, political, etc.
It was an interesting film. Didn't really know what was going on in the beginning by the way it is presented.
I thought the beginning was a bit disorienting as well.
The political aspects weren't revolutionary either, but instead of the usual "What will the aliens do to us?" it turned it around and gave us "What will we do to them?" Certainly different from what I am used to feeling in sci-fi. If they had made the political aspect of it a bit more subtle, I think the connections would have still been draw without people feeling like they are getting it spelled out for them.
The DTS-HD Ma 5.1 is flawless. Picture quality had some glossing and color burn for style, but is overall very detailed and well transfered.
I thought it was a fun movie.