Green Room is gut-wrenching, sometimes literally

 

Blue Ruin, Green Room. 

Writer-director Jeremy Saulnier is certainly not a director afraid to deal in primal colors: the bright green woodlands of Oregon into which down-on-their-luck punk band The Ain’t Rights stray, playing an impromptu gig to an audience of neo-Nazis; the visceral red of the horrific gore that results when band member Pat (an endearingly mumbly Anton Yelchin) stumbles upon a murder.…