It's a stunningly shot film. Time and time again I found myself wondering just how they'd managed to get the different effects to work. I know a little of Frank Miller's work, and this seemed very true to the style.
Very, very grim to watch, and horribly violent. At first I found that OK, because it was done in a comic book style… but it did become a bit much. I'm not a huge fan of violent imagery, and although the visual style and music were both compelling, I'm not sure how often I could rewatch this.
I also thought the story and format of the film was a bit reminiscent of one of my all-time least favourite films (now there's a controversial statement), Pulp Fiction. Surprise surprise, Tarantino was a "guest director" on Sin City. The way the story split, parts ran out of chronological order, and came back together, reminded me of Tarantino. Or maybe it was the other way around.
Apparently there's an extended version available on DVD, that splits the stories out separately rather than having them intertwined.
Sounds like Sin City 2 and Sin City 3 (and probably more) are on the way. I know one person in our family won't be watching it, as she positively hated this first installment. I'm going to have to think about whether I can cope with the next one…