Hlynur Pálmason’s extraordinary third feature finds a Danish priest battling both locals and a forbidding landscape in 19th-century Iceland. Lutheran priest Lucas (Elliott Crosset Hove) has been assigned by the Church of Denmark to establish a parish in the barren wilds of Iceland. He decides to take an arduous cross-country route, much to the annoyance of his guide and soon-to-be neighbour Ragnar (Ingvar Sigurðsson), who has to drag him to their destination when the priest falls from his horse.…