In an interview with Daniel Robert Epstien of Newsarama, Ron Perlman (Hellboy, Blade II) talks about upcoming projects, and seems to indicate that Watchmen may be one of them:

Daniel Robert Epstein: Besides Hellboy what has been necessary for your work
in terms of reading comics?

Ron Perlman: Well, Frank Darabont is a really close friend of Guillermo’s
and they share a boyish passion for comic books. The first time I ever met
Frank was in a comic book store here on Melrose in Los Angeles. In aisle
three we had a long, wonderful meeting and he told me I had to read League
of Extraordinary Gentlemen and everything that Alan Moore wrote. Then
Watchmen came up because [Hellboy producers] Larry Gordon and Lloyd Levin
have the rights to make the film version of that. They were pushing for me
to play the Comedian.

The read the full interview, click here.

Watchmen is currently in development at Warner Bros., with Zack Snyder signed on to direct.