Cillian Murphy says people need to watch Oppenheimer on the 'biggest f**cking screen possible'

“I think it’s a truly essential cinematic experience,” he told the outlet.

“And I know that’s what I’m supposed to say, that’s the studio line.

"But you have to see this in the cinema on the biggest f*cking screen possible. There are moments in it that will blow people’s lids off.”

The film follows Cillian Murphy portraying real-life physicist J. Robert Oppenheimer, who is working alongside a team of scientists to build the world's first atomic bomb during World War II.

Nolan also told Empire that he wanted to recreate the Trinity test of Oppenheimer’s bomb in the New Mexico desert without CGI.

And while he's done a lot of explosions on film, even his latest project hits a new frontier.

“There is something very unique and particular about being out in a desert in the middle of the night with a big cast, and really just doing some enormous explosions and capturing that," Nolan said.

"You couldn’t help but come back to this moment when they were doing this on the ultimate scale, that in the back of their minds they knew there was this possibility that they would set fire to the atmosphere. It was pretty amazing to engage in that kind of tension.”

Given what fans have seen so far, they're already blown away.

One fan wrote: "Cillian Murphy is perfect for this role, he's one of the greatest actors ever at showing the intensity and the inner demons of characters. He has Oppenheimer's mannerisms, body language, tone, and physical stature down perfectly."

Another said: "Looks great, to be honest, I'm more surprised that they've never made a movie about this man's life before. It's hard to overstate how important his work has been in the grander context of human history."

While a third marvelled: "Nolan, a well-calculating filmmaker who never disappoints."

Blunt and Murphy will be joined by Matt Damon, Florence Pugh, Robert Downey Jr., Rami Malek and Jack Quaid.

And there's already Oscar buzz for Murphy playing the famous theoretical physicist.

The film is slated for a July 20 release.