Scene for scene frame for frame its was the comic.

Rating: Null/10 (1 April 2005)

Sin City has always been one of my favorite comics. What amazed me the most was how true down to so small and trivial details it was exactly like the comic. Of course not all the actors could look like the way Miller drew them but that is nothing that can be helped.
In an attempt to be super true to the comic they pulled off the visuals is a wonderful way. Cuz in the end it's a film not a comic and some things just won't be right unless maybe they animated it. They made a mistake I think though in trying to use word for word dialogue. Many of the actors seemed strained to repeat them and it didn't always seem natural. The best at it was Jessica Alba, maybe because she didn't have so many "one liners".
on another note it is an extremely violent movie anyone who can't stomache such things should probably stay away. I wouldn't bring the kids.
As far as people who have read the comic I think you will be happy with it but a few scenes from the comic are not in the movie. which does change a few things but not much.
All and all though an excellent adaptation 9/10