Zack Sharf Digital News Director Martin Scorsese’s $200 million epic “Killers of the Flower Moon,” based on David Grann’s 2017 non-fiction book, centers on the Reign of Terror, a term the Osage Nation used to define the murders of at least 60 community members in the late 1920s. The film tells this true crime tale through the lens of a marriage between Ernest Burkhart (Leonardo DiCaprio), a World War I veteran who relocates to Oklahoma to work with his rancher uncle, and Mollie Burkhart (Lily Gladstone), a local Osage woman whose family was one of the community’s wealthiest. Robert De Niro stars as Ernest’s uncle, William Hale.