Cillian Murphy, Emily Blunt, Matt Damon, Robert Downey Jr, Florence Pugh, Josh Hartnett, Casey Affleck, Rami Malek, and Kenneth Branagh discuss Christopher Nolan's latest film 'Oppenheimer' that explores the story of the man behind The Manhattan Project. They talk about Nolan's mastery of narrative pacing and cinematic spectacle, the absence of CGI in the film, and whether it's Nolan's best work. Also, they delve into practical effects, Killian Murphy's role, the fear of socialism, and the moral implications of building an atom bomb.