Robert Downey J. praised his co-star in the film “Oppenheimer”, Cillian Murphyfor the level of commitment to his performance in the lead role.

Cillian Murphy plays the physicist Julius Robert Oppenheimer in the new epic directed by Christopher Nolan, about the man credited with creating the atomic bomb.

The film was critically acclaimed and a box office success, with particular praise for Murphy’s performance.

In a recent interview, Robert Downey J. took the opportunity to praise Cillian Murphy for his hard work and dedication to perfecting the role.

I have never seen a greater sacrifice from a leading man in my careersaid Robert Downey J. featured in the ‘Iron Man’ film series in People magazine.

I think he had the humility required to survive playing a role like thishe added.

Downey Jr., who plays Atomic Energy Commission chairman Lewis Strauss in the film, cited an example to show how committed Murphy was to the extra effort the role required.

We were like, “We have three days. Maybe we’ll go antique shopping in Santa Fe. What are you going to do?” and he would reply: “Oh, I have to learn 30,000 words in Dutch. Have fun”” said Robert Downey J.