We really can't stress that fact enough. Do not watch this if you're any way squeamish because it is ROUGH.
Jeremy Saulnier's follow-up to 2013's critical hit Blue Ruin sees a rag-tag group of punk rockers (Anton Yelchin, Imogen Poots, Arrested Development's Alia Shawkat and Callum Turner) playing in a backwoods bar that's run by a group of White Supremacists. When they take a wrong turn and see something they shouldn't have seen, things go progressively from bad to much, much worse.
Early reviews for Green Room are comparing it to Texas Chainsaw Massacre and its screening at this year's Audi Dublin International Film Festival is expected to sell out pretty soon.
Take a breath and then hit play. Again, it's squeamish so maybe hold off on eating before you do.