The official Watchmen movie site has posted up photos of a few heroes. No easy task transmogrifying superheroic comic book-style costumes into "real world" attire. These run hot and cold and are, by and large, not particularly faithful to the printed page. Which is a bummer.

Comic book nerds are bound by a fundamental obligation to nitpick details:

The Comedian looks great, though the mask is oddly thick and sort of beveled. Better if it laid flat.
The Night Owl is entirely too overwrought. In bad need of simplification. They got the weight right though. Everything else = wrong.
Ozymandias has nipples. Ugh.
Rorschach is fantastic (though his crimefighting regalia isn't a very tall order). Mask looks about right, sans any special effects.
The Silk Spectre is fine I reckon, given the constraints of the source material.

Still a year to go before release. Jay pointed out the Tales of the Black Freighter parallel story will be some sort of DVD anime bonus type deal voiced by Leonidas Bulter. Which is encouraging.