The Wikipedia entry can probably give more details, but summary: It's a comic series written by Alan Moore, one of the big giants of comic book writing. It's set in an "alternate reality", where superheroes existed and have changed the course of history; also, superheroes are presented as dark people, subject to very human foibles and politics (excepting one).

I've reread Watchmen a number of times in my life, rereading it again recently in anticipation of the movie. The trailers have looked really good! I hope this as another LotR sort of book-to-movie in my life. :)

Count me in for dinner. Probably not seeing the movie.

actually I'm for dinner and movie

Awesome! We'll see you there!