The trailer for Prometheus has leaked. Keep an eye out for the blatant grammatical error toward the end. Hilarious.
I can't say I'm a big fan of the Alien series, only because I don't remember them. I saw Aliens when I was little and loved it. Then I saw the third and fourth at some point a long time ago and don't remember anything about them. Never saw the first one (I know, sacrilege!) So...yeah. From an outsider's perspective, I have to say this looks pretty damn intriguing. From what I could see of it, anyway. That is the worst leak I think I've ever seen.