DOCThese punches can kill. For twelve years, director Ian Palmer has documented the brutal, bare-knuckle duels between these feuding Irish Traveler families, but they’ve been at it for generations.

Knuckle focuses on the secretive, seldom-seen community’s two brothers who have to fight for “their reputations and the honour of their family name” and it looks like it’s going to get bloody, dramatic and philosophical.

The doc hits UK theaters August 5th, has been picked up for North American distribution and is being considered for a fictionalized feature that is likely to swap out the authentic, gritty fight footage of the film with something sleek and thereby less exciting.