Who Watches the Watchmen?

I've been reading watchmen, again, for the fourth time. This time it's because i'm curious about how Zack Snyder will approach the movie. For you who has already read the graphic novel, you would agree with me that the graphic novel is very, very hard to be pictured in a big screen. Watchmen has layers of stories. Many flashbacks, character backgrounds, philosophical background, and extraordinary sets.
I still doubt Snyder's ability to tackle this one. His Dawn of the Dead is pure fun, and 300 was visually great, though the dialogue are a bit corny. I didn't doubt his vision of visual direction. Those two films that i mentioned are the proof. The thing is, Snyder has not prove himself to be a director who can deliver a story with so much intensity and complex issues. Alan Moore himself said that he wrote Watchmen because it is impossible to make it for the big screen. That's why he chose to write it on graphic novel medium.
Terry Gilliam and Paul Greengrass, two directors that previously attached has backed off from the project, possibly because they didn't find the right vision to put the big screen.
However, i still got my finger crossed for the project. I hope Snyder didn't change any part in the graphic novel, because it would be a betrayal to the original piece. It is a very big responsibility for him to direct a movie like this. For you who haven't read the graphic novel, i suggest you to read it. It is the Godfather of comic books. It is one of the finest literary ever written. It took me to read it twice to understand the book itself. I assure you, this is one of the best novel/graphic novel ever written.

Cheers to Zack Snyder,
All the best.