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Killers of the Flower Moon

Killers of the Flower Moon is a 2023 American epic crime drama film directed by Martin Scorsese and co-written with Eric Roth.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

Killers of the Flower Moon is a 2023 American epic crime drama film directed by Martin Scorsese and co-written with Eric Roth. Based on David Grann’s 2017 nonfiction book, it dramatizes the Osage murders in 1920s Oklahoma after oil was discovered on tribal land. The film features a large ensemble cast including Leonardo DiCaprio, Robert De Niro, and Lily Gladstone.

Premise

Set in 1920s Oklahoma, the film follows events after the Osage Nation became wealthy from oil discovered on tribal land. It depicts murders and fraud targeting Osage people and the subsequent FBI investigation.

Production

The film was directed by Martin Scorsese and co-written with Eric Roth, adapting David Grann’s 2017 nonfiction book. It features a large ensemble cast including Leonardo DiCaprio, Robert De Niro, Lily Gladstone, Jesse Plemons, Tantoo Cardinal, John Lithgow, and Brendan Fraser.

Historical background

The story is rooted in the real Osage murders, a series of killings and disappearances in the 1920s associated with greed over oil wealth. Sources describe the period as the Osage Reign of Terror.

Reception

The film received significant critical attention and was described by major outlets as a major historical crime drama. Reviews highlighted its depiction of American violence, colonialism, and greed.

Key facts

  • Based on David Grann’s 2017 nonfiction book.
  • Centers on murders of Osage Nation members in 1920s Oklahoma after oil discovery.
  • Directed by Martin Scorsese and co-written with Eric Roth.
  • Stars Leonardo DiCaprio, Robert De Niro, and Lily Gladstone.
  • Relevant to Canadian readers through themes of Indigenous history and colonial violence.
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Canadian context

The film is relevant to Canadian readers as a major international release about Indigenous history, colonial violence, and resource wealth, themes that resonate with Canadian discussions of Indigenous rights and historical justice.

Frequently asked questions

What is Killers of the Flower Moon about?
It is about the murders of Osage Nation members in 1920s Oklahoma after oil was discovered on their land, and the investigation that followed.
Who directed Killers of the Flower Moon?
Martin Scorsese directed the film and co-wrote the screenplay with Eric Roth.
What is it based on?
It is based on David Grann’s 2017 nonfiction book Killers of the Flower Moon.
Who stars in the film?
The cast includes Leonardo DiCaprio, Robert De Niro, Lily Gladstone, Jesse Plemons, Tantoo Cardinal, John Lithgow, and Brendan Fraser.
Is the film based on real events?
Yes. It dramatizes real murders and investigations involving the Osage Nation in the 1920s.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Killers_of_the_Flower_Moon
    Supports: Release year, director, screenplay, cast, and premise.
  2. Rotten Tomatoeshttps://www.rottentomatoes.com/m/killers_of_the_flower_moon
    Supports: Synopsis, setting, and basis on David Grann's book.
  3. The New York Timeshttps://www.nytimes.com/2023/10/19/movies/killers-of-the-flower-moon-review-martin-scorsese.html
    Supports: Historical setting, themes, and critical framing.
  4. IMDbhttps://www.imdb.com/title/tt5537002/
    Supports: Release information, genre, and plot summary.
  5. Apple TV / YouTubehttps://www.youtube.com/watch?v=EP34Yoxs3FQ
    Supports: Official trailer description, cast, director, and story premise.
  6. British Film Institutehttps://www.bfi.org.uk/sight-and-sound/reviews/killers-flower-moon-second-look-review-landmark-achievement-martin-scorsese
    Supports: Historical context, the Reign of Terror, and thematic interpretation.
  7. The New York Timeshttps://www.nytimes.com/2023/10/20/movies/killers-of-the-flower-moon-osage-murders-explained.html
    Supports: Osage murders background, FBI investigation, and character identifications.
  8. The Guardianhttps://www.theguardian.com/film/2023/oct/22/killers-of-the-flower-moon-review-martin-scorsese-osage-county-native-american-masterly-true-crime-epic-robert-de-niro-leonardo-dicaprio-lily-gladstone
    Supports: Plot overview and historical setting.