As Oscars near, Emily Blunt speaks highly of Cillian Murphy's performance.

Blunt on Murphy: 'The quietest conductor of this whole thing. 

Murphy's captivating presence, a key to 'Oppenheimer's' success, says Blunt 

Blunt credits Murphy, not just Nolan, for the film's captivating nature. 

Cillian Murphy's first Best Actor Oscar nomination for 'Oppenheimer'. 

Emily Blunt up for Best Supporting Actress in the same film. 

Robert Downey Jr. also nominated for Best Supporting Actor.