Kevin Costner defends his latest, ‘Horizon: An American Saga,’ at Cannes

He’d just premiered the first part of his four-chapter Western opus, “Horizon: An American Saga,” at the Cannes Film Festival on Sunday. It’s the culmination of an obsession with frontier life in the United States that dates back to his directorial debut in 1990’s “Dances with Wolves,” and has continued through his recent five-season stint as the rancher-patriarch of “Yellowstone.”