There is something very pseudo-Shakespearean about Trespass Against Us, and not just because of Michael Fassbender’s pedigree playing the mad Scottish king. This West Country Traveller crime drama revolves around the question of lineage and, in its own grubby way, dynastic fulfillment. The Cutlers are a family of Travellers who, along with the rest of their small nomadic community, have rejected conventional townie life and finance their existence with a spot of thieving on the side. At the head of the clan sits Brendan Gleeson’s Colby, usually seen squatting on his beaten-down leather armchair throne, who keeps a firm grip…