The movie had its world premiere last month at the Toronto International Film Festival. The drama, also starring Sam Rockwell, Michael Greyeyes, Ciaran Hinds, and Bill Camp, is directed by Susanna White from a screenplay by Stephen Knight.
Producers are Edward Zwick, Marshall Herskovitz, Erika Olde, Richard Solomon, and Andrea Calderwood. The production companies are Bedford Falls and Black Bicycle Entertainment in association with Im Global, Potboiler Productions, and LipSync.
A24 and DirecTV are planning a 2018 release, in which A24 will give the film a national theatrical rollout in all major markets.
Chastain portrays Catherine Weldon, a widowed artist from New York in the 1880s, who travelled to North Dakota to paint a portrait of chief Sitting Bull, who is portrayed by Greyeyes. The duo strikes up an improbable friendship, joining forces to take on the U.S. government