Check out the Sin City conversation at the Ooze.
Here is one person’s reason we should watch movies like Sin City:
The issue is that sticking your nose up at the movie, condemining it, and declaring your insulation within a smug Christian subculture, perhaps you should use it as a tool to understand what the lost (I hate that term) around you are talking about and misconceptions about life and spirituality that they have. Use it as a talking point to move someone toward the Kingdom of God.
A poster poses this question: Where do (we) draw the line between spiritual protection and interacting in this fallen world?