When I first finished Natural Selection, or Monster Hunter, I didn't know what to think. The movie comes at you like a breeze, quick and without much of an impression.
The movie itself was not that interesting. A plot about serial killers and a couple of jokes.
What really bothered me was its side-plot, the one that involves David Carridine. I can't tell you much about it, but it's "interesting" The movie obviously had some vision, which I liked. It tried something new. But it just fell short. Way too many problems with me, which I can't tell you much about.
This movie is obviously one of those "you love it or hate it" kind of movies. So I hope you get the chance to see it to make up your mind.