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Emily Blunt Revealed Cillian Murphy's Diet For "Oppenheimer," And It's Not Exactly Safe Or Healthy

It's giving Yolanda Hadid.

You've probably heard about the new movie Oppenheimer. It's getting a lot of buzz.

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Universal / Via youtube.com

The film, which was directed by Christopher Nolan, stars Cillian Murphy as J. Robert Oppenheimer, the American scientist credited with creating and developing the atomic bomb.

Closeup of J. Robert Oppenheimer

Well this week, costars Emily Blunt and Matt Damon sat down with Extra, where they discussed Cillian's dedication to the role.

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"Cillian had such a monumental undertaking," Emily shared. "And he could only eat, like, an almond every day."

Cillian Murphy as J. Robert Oppenheimer

AN ALMOND??????????

Almonds

"He was so emaciated," Emily added.

Cillian Murphy as J. Robert Oppenheimer

"The sheer volume of work that he had, and the level of detail that Christopher [Nolan] demands," Matt said. "There was always something for him to be thinking about. There was something coming down the pike."

Closeup of Emily Blunt and Matt Damon

Oppenheimer's diet, Cillian recently told IndieWire, consisted of "cigarettes and pipes — he would alternate between the two."

Closeup of Cillian Murphy as J. Robert Oppenheimer

“I don’t want it to be, ‘Cillian lost x weight for the part.' I love acting with my body, and Oppenheimer had a very distinct physicality and silhouette, which I wanted to get right. I had to lose quite a bit of weight, and we worked with the costume and tailoring; he was very slim, almost emaciated, existed on martinis and cigarettes."

Closeup of Cillian Murphy as J. Robert Oppenheimer

Wow. You can watch Emily and Matt's Extra interview here, and read Cillian's IndieWire interview here.