I just rented this movie and took it home and that's when I saw it on the box, the name Ulli Lommel. This director also directed Zodiac Killer, the worst, most god-awful POS ever created. Now I don't even want to see Green River Killer because it has his name on it. I'm going to give it a shot, expecting the worst, and then finish this review.
Ok, I have just actually finished this movie. It is not entirely unwatchable, like Zodiac Killer, but is still pretty bad. If you are a casual movie renter who tends to rent the big blockbusters or the movies that just come out nationwide in theaters, I cannot recommend this to you. Like someone else said, the film quality looks like an America's Most Wanted reenactment. The only really grotesque parts of the film that some people would find unwatchable would be the short little flashes of autopsy film, which I believe has nothing to do with the Green River Killer, but is added for shock value. Other than these snippets of autopsies showing bodies being ripped open and skulls being trephinated after the persons scalp has been peeled off and over their face (which is the worst part of an autopsy to watch, actually), the movie is not that graphic. One weird aspect of the film is whenever he goes in the same bar to pick up prostitutes, the film plays like a very bad 80's music video with a dancing serial killer.
In summary, the film as a whole seems to go nowhere, is often repetitive, is not that fun to watch, but is a little enjoyable with some Evan Williams. It gets one star, not zero stars like Zodiac Killer. If you like crappy, bad, unwatchable indie film drivel, then this movie is for you. Everyone else, don't waste your time. I watched it so you don't have to. If you want a decent serial killer film that is fun and actually frightening and creepy to some extent, get "The Devil's Rejects", directed by Rob Zombie.