The film stars Leonardo DiCaprio as Ernest Burkhart and Robert De Niro as his uncle, a powerful local rancher. Belleau will play Henry Roan, an Osage rancher. Cancelmi will play Kelsie Morrison, a local hustler and friend of Burkhart. Simpson will join as rodeo champion and bootlegger Henry Brammar, while Isbell will make his acting debut as Bill Smith, an adversary of Burkhart.
The movie, set in 1920s Oklahoma, depicts the serial murder of members of the oil-wealthy Osage Nation, a string of brutal crimes that came to be known as the Reign of Terror. The film — to be directed by Martin Scorsese — is based on David Grann’s book of the same name and has a script by Eric Roth. Set in 1920s Oklahoma when the Osage Nation discovered oil under their land, the Native Americans found themselves being murdered one by one. As the death toll rose, the newly created FBI took up the case and unraveled a chilling conspiracy and one of the most monstrous crimes in American history.