I may be a bit late to the party, but have you folks seen the International version of the Trailer, which is posted at the top (updated). IMHO, the International trailer has the better, classier presentation, especially the score...although it may be walking the fine line of providing too much info. / potential spoilers. There is some very significant dialogue bits in the International Trailer.
Kind of lays the cards pretty much on the table, when you hear Janek yell
Spoiler
"KILL EVERYTHING"!!!
Although, we all already knew things were going to get very bad...so maybe not so much of a spoiler. I am just surprised they included so much pointed dialogue.
Spoiler
And the International Trailer makes it even more obvious that Lindelof / Scott have taken their cues from the Von Daniken school of bad archaeology. In fact, it pretty much beats us over the head with it.