Killers of the Flower Moon. In theaters October 6. Based on David Grann’s broadly lauded best-selling book, Killers of the Flower Moon is set in 1920s Oklahoma and 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. Directed by Martin Scorsese and Screenplay by Eric Roth and Scorsese, the film stars Leonardo DiCaprio, Robert De Niro, Lily Gladstone, Jesse Plemons, Tantoo Cardinal, Cara Jade Myers, JaNae Collins, and Jillian Dion. Hailing from Apple Studios, Killers of the Flower Moon was produced alongside Imperative Entertainment, Sikelia Productions and Appian Way. Producers are Scorsese, Dan Friedkin, Bradley Thomas and Daniel Lupi, with DiCaprio, Rick Yorn, Adam Somner, Marianne Bower, Lisa Frechette, John Atwood, Shea Kammer and Niels Juul serving as executive producers.