"Watchmen" co-screenwriter (from a draft or two back) and sometime video game voice actor David Hayter had an "open letter" to film fans that's been making the rounds, you can read a good full copy over on AICN: http://www.aintitcool.com/node/40409
Basically, he's asking not only Watchmen fans but also detractors, mixed-feelers and even not-carers to go see it (again) this weekend. His reasoning is sound: Hollywood math is all about how hard you drop in the 2nd weekend, and if "Watchmen" takes a Jonas Bros. level tumble in IT'S 2nd weekend the verdict will be in: Only "fanboys" care, you can't make money JUST off them, next time cut it to a PG13, get Beyonce' working on a theme song and hire Bret Ratner. I'm with Hayter on this one - a movie this uncompromising NEEDS to be seen as a success, to encourage more like it to be made.
If you have ANY inclination to see this again, do it today or saturday. Take friends. Spend 7 to 10 bucks, and help make the movie world a better place.