That's the official trailer for Watchmen. It has a Smashing Pumpkins song.
Personally, there's not much to say about it: it's a mash up of images that has the same feel as 300 did, and that film was pretty goddamn awful, not to mention racist. I notice that Asian people are being blown apart and killed. Sure, it's in the original text, but I'm just planting seeds, planting seeds. What it does bring to mind, however, is just how poorly previous Alan Moore written projects have been turned into films. V for Vendetta missed the point, From Hell was a shadow of its intelligence, and The League of Extradordinary Gentlemen was a shadow of a film.
Maybe I'm just cool if none of this stuff becomes a film.