The epic length of Martin Scorsese’s new film has been revealed “Killers of the Flower Moon”.

The upcoming film from the American director, producer and screenwriter is based on the book of the same name by David Gran and stars Leonardo DiCaprio, Lily Gladstone, Robert De Niro and Jesse Plemons.

The story explores an investigation of F.B.I about a series of murders that plagued the Osage Indian tribe in Oklahoma during the 1920s after oil was discovered on their land.

Watch the movie trailer:

According to Variety, the film, which is set to premiere at the Cannes Film Festival in May, will break records as it is expected to be Scorsese and DiCaprio’s biggest film.

While Scorsese’s previous film “The Irishman” was 3.5 hours long, the film “Killers of the Flower Moon”, according to reports, will reach four hours.

Earlier it became known that the film project of Apple TV Plus, which cost 200 million dollars, will be released in October.

While it may break Scorsese and DiCaprio’s record, it won’t surpass De Niro’s longest-running film, Sergio Leone’s Once Upon a Time in America (four hours and 11 minutes).