Azumi
Ryuhei Kitamura's Azumi features one of the most sinister examples of the buddy system ever committed to film. Early on, 10 elite fighters trained since childhood to be unstoppable, unthinking killing machines are asked by their mentor to pair off, then kill their partners to prove they're worthy to assassinate the warlords wreaking havoc on Japan. Of course, any mission that begins with the arbitrary slaughter of beloved friends is morally suspect from the get-go, but the rightness of the surviving quintet's mission gets muddier at every turn. In that respect, Azumi resembles Munich, another film about assassins faced with the dilemma of whether strategic violence prevents bloodshed or perpetuates it.