Here it is.
If you saw The Island this weekend, you got to see this already. Otherwise, follow the link above. There's even a true high def version, which is awesome if you have the equipment to run it.
I'm both psyched and wary. It's, IMO, among Alan Moore's best work (IMO, better than Watchmen), and a favorite of mine. Moore has reportedly been incensed by the script and online reviewers who've read it have been mixed.
I like what I see in the trailer, but I'll have to reserve judgement until I see the whole thing.