"Killers of the Flower Moon" is a 2023 American epic Western crime drama film directed and produced by Martin Scorsese, who co-wrote the screenplay with Eric Roth, based on the 2017 book of the same name by David Grann). The films plot centers on a series of Oklahoma murders in the Osage Nation during the 1920s, committed after oil was discovered on tribal land. Members of the Osage tribe in the United States are murdered under mysterious circumstances in the 1920s, sparking a major F.B.I. investigation involving J. Edgar Hoover. The film stars Leonardo DiCaprio, Robert De Niro, and Lily Gladstone). According to Metacritic, the film has received "universal acclaim").