i'm not going to tell you any spoilers, I'm not going to give you my complete opinion, I'm just gonna let you know a few things about this Watchmen movie.
If you've never read the graphic novel, it's too late to start. You're going to watch it, and you're going to be corrupted by the movie version first, just as I was corrupted by the graphic novel. So, that said, here we go:

Best CGI: Dr. Manhatten. They got his glowy skin deal going on pretty accurately
Worst CGI: Bubastis. I mean, a snow leopard with deer antlers would've been more believable.

Best Sticking to the plot element: The characters. Absolutely spot on. Dan's still a wimp, Rorschack scares the poop out of me, and the Comedian, actually if anything, improved.
Worst Sticking to the plot element: Everything after the sex scene.

My favorite moment: Rorschack's "Never compromise" speech
My least favorite moment: Everything after the sex scene.

So yeah, I haven't wanted to walk out of a theater in a long time, so that was a cool experience. I loved that it stuck to the time period. I loved that the comedic element was expounded upon to make its point about human nature. I hated that the point came at the price of a rather ridiculous film.

Also, There's a lot of penises. It came to the point that a guy in front of us shouted "NO MORE NAKED MEN". Which gained a round of applause from the audience.
Okay. That's my review.

I hope you read the graphic novel.
<3 V