The penultimate film of Tibetan director Pema Tseden (Tharlo, Balloon), centres around a disagreement between a father and his two sons about how to deal with the predator that threatens their livelihood. It’s a visually stunning, spiritual piece of work, set in a rural community on the Tibetan plateau. A magnificent but deadly snow leopard has been trapped by a shepherd whose sheep it has mauled. He wants to slaughter it but his father, abiding by the traditional…