Emily Blunt Reveals Cillian Murphy’s Extreme Diet for ‘Oppenheimer’: Surviving on Just an Almond a Day

Murphy Cillian Oppenheimer.
When playing scientist J., Cillian Murphy underwent a dramatic transformation. Robert Oppenheimer in the most recent Christopher Nolan picture.
Photo courtesy of Universal.

In order to play scientist J, Cillian Murphy underwent a drastic physical makeover, which included weight loss. The future Christopher Nolan film Oppenheimer will star Robert Oppenheimer, the man who invented the atomic bomb.

His on-screen wife Kitty Oppenheimer, who is played by Emily Blunt, said in an interview with Extra that he had to adhere to a very strict diet in order to lose weight. He was working on such a huge project. He was only able to consume one almond per day, she continued.

He looked so thin. ”.

In a recent interview with IndieWire, Murphy spoke about his drastic weight loss for the part and emphasized, “I don’t recommend it. ”.

He even avoided mentioning the exact amount of weight he lost, saying, “I don’t want it to be, ‘Cillian lost x weight for the part. ’”.

However, as co-star Matt Damon, who plays Manhattan Project director Lt. Gen. “The sheer volume of work that he had, and the level of detail that Christopher [Nolan] demands,” Leslie Groves said in an interview with Extra.
He had something to think about all the time.
He needed to do something because it was coming up soon.

Blunt wrapped it up for him, “Be ahead of.”.

Even so, Murphy acknowledged that while filming, “I was running on crazy energy; I crossed a threshold to the point where I was not worrying about food or anything.”. I was in a hyper-something state because I was so into it. However, the fact that the character was that way made it good. He never consumed food.
”.

The goal of the weight loss was to physically resemble Oppenheimer as closely as possible, a man who, according to Murphy, subsisted solely on “cigarettes and pipes, he would alternate between the two.”. ”.

He stated, “I love acting with my body, and Oppenheimer had a very distinct physicality and silhouette, which I wanted to get right, in an interview with The New York Times. “.

He was very thin, almost emaciated.
“I had to lose quite a bit of weight, and we worked with the costume and tailoring,” he continued. We spent a lot of time prior to starting working on his silhouette and expressions because he had really bright eyes and I wanted to give him a wide-eyed appearance. ” .

His commitment to guiding Oppenheimer — which is based on the Pulitzer Prize–winning biography American Prometheus: The Triumph and Tragedy of J. Murphy frequently had to miss cast dinners because of Robert Oppenheimer, Blunt recently told PEOPLE.

The sheer amount of responsibility he had to carry is monumental, according to Blunt.

Of course he didn’t want to join us for dinner. He couldn’t, Damon told PEOPLE. Just too much was going on in his head. “.