The Brit described by her three-time collaborator Meryl Streep as "the best young actress I’ve worked with in some time, perhaps ever" reflects on how a childhood stutter led her to acting, taking on frightening physical and vocal challenges in film roles and playing the wife of J. Robert Oppenheimer in Christopher Nolan's acclaimed summer blockbuster.Learn more about your ad choices. Visit megaphone.fm/adchoices