Cillian Murphy's calm, cool, and collected demeanor clearly runs in the family, evidenced by his dad Breandán Ó Murchú who has opened up about his son’s first-ever Oscar nomination.

Cillian was home in Co Cork with his wife and parents when his first-ever Oscar nomination - for his lead role in "Oppenheimer" - was announced on Tuesday, January 23.

The following day, Breandán spoke with Helen Ní Shé on RTÉ's Irish language station Raidió na Gaeltachta about the experience.

"We were all here, there are four of us and each is as important to us as the other, we were all together and we had a cup of tea and the story came and we were delighted," Breandán said, according to EchoLive.

"We’re very pleased entirely for him," Breandán continued, "I don’t like to say we’re proud of him because it’s his achievement, not ours.

“We brought him into the world and we did our best but we don’t see at all that we had a hand in the work that he’s doing at present but we’re not going to lose our wits and neither is he.

“We don’t like to make too much fuss about him, he’s got a job like the sons and daughters of other people, and the difference, he gets a lot of publicity.

“All the same we’re so happy for him and pleased.” 

While Cillian's parents are modestly but rightly proud, it's unlikely they'll head to Los Angeles in March for the Oscars awards ceremonies: “If he’s nominated for a BAFTA, we will go there as it’s closer to home and when he comes home from the Oscars, we will make him a cake.”

Cillian has been nominated for an Academy Award in the 'Performance by an actor in a leading role' category for his portrayal of American theoretical physicist J. Robert Oppenheimer in the summer blockbuster "Oppenheimer."

The film, Murphy's latest collaboration with Christopher Nolan, landed 13 Oscar nominations, more than any other movie this year.

“I feel really privileged and I feel really lucky to be in a film that’s connected with people in a way that it has critically and commercially,” Murphy told Deadline on Tuesday after the Oscar nominations were announced.

“To be in a film that people have seen three and four and five times and they come up to you and tell you that…”

Some may be surprised to hear that this is Cork native Murphy's first-ever Oscar nomination. He's been acting for close to 30 years, and has previously featured in Oscar-nominated films including "Inception" and "Dunkirk," though has never clinched an acting nomination, until now. 

Murphy is among the favorites to actually win the Best Actor Oscar - predictions have it going to him or Paul Giamatti for "The Holdovers." Also nominated are Bradley Cooper for "Maestro," Colman Domingo for "Rustin," and Jeffrey Wright in "American Fiction."

Like his father, Cillian is keeping it all in perspective. He told Deadline on Tuesday: “I feel really lucky to have been in rooms full of artists who I really genuinely admire and get to spend time and talk about it."