As Martin Scorsese and Leonardo DiCaprio re-teaming for a movie adaptation of David Grann’s Killers of the Flower Moon: The Osage Murders and the Birth of the FBI, now comes news that another regular Scorsese collaborator is to be a part of the picture.

Courtesy of Tulsa World, it’s being reported that Robert De Niro will be joining Scorsese and DiCaprio on the film.

The official word on the source novel reads:

In 1920s Oklahoma, the Osage Nation were the richest people per capita in the world, after oil was discovered under their land. And then they were murdered, one by one. As the death toll rose, the newly created FBI took up the case and unravelled a chilling conspiracy and one of the most monstrous crimes in American history.

Seemingly the movie will simply be titled Killers of the Flower Moon, with shooting to take place in Osage County later this year.

This will be the ninth feature film that Scorsese and De Niro have worked on together – going back to 1973’s Mean Streets – while Scorsese and DiCaprio’s working relationship is currently at five movies, dating back to 2002’s Gangs of New York. Of course, all three of Scorsese, De Niro and DiCaprio also worked together on 2015’s The Audition short film.

Expect more on Killers of the Flower Moon as it continues to develop.