For those of you who don't know, Watchmen is a popular graphic novel, which I would highly recommend.
The movie is scheduled to come out on 03.06.09. and is directed by Zack Snyder, the same guy who did 300. I'm not sure sure about the casting but
we'll see how it goes.
Here's the link to the official website:
Warner Brothers Official Site
and here's the link to IMDB so you guys can have a look at the cast: