evidence: Cillian Murphy: Oscar win makes Oppenheimer star a Hollywood heavyweight - Author, Steven McIntosh and Ian Youngs - Role, Entertainment reporters After making his name battling zombies in 28 Days Later and ruling a ruthless gang in Peaky Blinders, Cillian Murphy has now been recognised as a Hollywood heavyweight after winning his first Oscar for playing the father of the atomic bomb in Oppenheimer. [...] The Oscar-nominated Oppenheimer star sits down with the BBC's Culture Editor Katie Razzall.