Green Room. I was only lukewarm on Saulnier's Blue Ruin a couple of years ago - a sincere and well-made, but rather unremarkable and very low-key revenge film. It showed promise but was kind of over-praised. He certainly has the skill to make a great film, however, and casting Patrick Stewart (!) as the head of a gang of neo-Nazis, riled by a hardcore band's cover of "Nazi Punks Fuck Off," is bloody inspired stuff. The idea is so good it's surprising no one has gone near this territory before. Plays Friday at 8:45 at the Rio, I believe. Can't miss that.