Kamurai
Good watch at best, probably won't watch again, but can recommend for time-shift loop fans ("Groundhog's Day").
I was all excited to stumble into another tim-shift loop movie, with Amanda Palmer no less. She's wildly underrated as an actress, mostly to having (probably) the worst role written on "Silicon Valley".
This movie is basically "Groundhog's Day" for drug addicts. While the protagonist in the other movie was an egotistical jerk, he wasn't an evil person, but this movie decides to "Chronicle" with it and go with a "might makes right attitude" with one of the characters.
The idea of an infinite war is actually pretty boring, and I think getting up everyday to run around shooting and raping people would grow old pretty fast....