Leonardo DiCaprio has described Martin Scorsese‘s new film, Killers Of The Flower Moon, as a “masterpiece”.DiCaprio stars alongside Robert De Niro in the movie, which details the real-life killings of the native Osage people in 1920s Oklahoma, where oil deposits were discovered.Jacqueline West, the movie’s costume designer, who also worked with DiCaprio on The Revenant, recently recalled a conversation she had with the actor about Scorsese’s film.Speaking to Deadline, she said: “I was talking to Leo about it. We had lunch before I came here.