Nah I haven't yet, but it looks to be getting pretty good reviews. Lots of people slagging it off for being slow and not having much of a story but the ones that give it good reviews seem to realise that's the whole point of it. I'm excited to see it, I love me some post-apoc goodness!
Also RE: Silent Hill movie. Pyramid Head was in Silent Hill 2 because he is a representation of the main character's insecurities and neuroses. Now he just makes arbitrary appearances for tha fans, not because he actually has a place there. Same goes for the zombie nurses, that was a representation of sexual insecurity for the character in question, not just made to be put there for fans. This is why I personally loathed the movie. So much stuff was totally out of place.