Cillian Murphy says Oppenheimer is Christopher Nolan’s ‘magnum opus’

While Barbie was the biggest winner over the weekend, Oppenheimer's reviews have been so ridiculously good that it seems both films will certainly be going down in the history books.

Speaking recently, Cillian Murphy, who plays the films titular character, opened up about the work, going so far as to state that it is director, Christopher Nolan's best work.

In an interview with Slash Film, Murphy said: "I think he's refining his vision as a filmmaker. I think if you look at the progression of the films, I think this may be his magnum opus."

Talking about his personal growth, Murphy said: "I've gone off and made lots of other work, but I love coming back to work with Chris. There is no set that runs as smoothly and as calmly, and as efficiently as a Chris Nolan set. I've never been on a set like that. Everyone is laser-focused on their work."

Oppenheimer is in cinemas now.