It's more violent than the source material, and considering that Alan Moore had Captain Nemo gunning down men with a Harpoon Machine Gun in League of Extraordinary Gentlemen, that's saying something.
(Actually, I liked the movie, I thought it hit all the major points of the graphic novel in the under 4 hours they had, even it did seem abridged at some moments. However, They added some unnecessary Foreshadowing, and cut out all the Non-Super-people Shenanigans, But thous will be in the Director's cut. The actors-especially the ones who played Doctor Manhattan and Rorshach- were exclient, and it had one of the best goddamn opening credits ever. ***1/2 out of *****)