Who will watch "Watchmen?"

Comic fans checking out "The Dark Knight" will get a thrill even before the movie comes on screen, with a trailer for "Watchmen," based on the graphic novel by Alan Moore and Dave Gibbons. The "Watchmen" movie is also this week's cover story in Entertainment Weekly, part of a package devoted to the San Diego Comic-Con International. Director Zack Snyder certainly seems devoted to a faithful adaptation. EW, though, calls it "the riskiest superhero movie ever," with a relatively little-known cast and a source that, while revered by comic book fans and hailed by critics outside of comic book circles, is probably not known to the average person.