The film is based on David Grann’s critically acclaimed book.
The brutal Osage murders actually took place in the 1920s in Oklahoma.
Two of Scorsese favourites — Leonardo DiCaprio and Robert de Niro — come together onscreen.
Killers of the Flower Moon has a $200 million (Rs 1600 crore) budget.
The film’s duration is 3 hours, 26 minutes, making it longer than most Hollywood films.
The crew reportedly met the indigenous American tribe to know their real experiences.
Brendan Fraser also stars in the film.
Rodrigo Prieto, the man behind Scorcese’s The Wolf Of Wall Street and The Irishman, is the cinematographer.
It is an Apple TV+ film but also releasing on big screen.
Eric Roth, the Oscar-winning screenwriter of Forrest Gump, has adapted the screenplay from the original book.