John Bradley Talks '3 Body Problem' & 'Game of Thrones' Audition

John Bradley dishes on his new Netflix series "3 Body Problem," where he plays a scientist trying to save the world in the face of "mankind's biggest existential threat." He also reflects on landing his role as Samwell Tarly on "Game of Thrones" in his first-ever audition, and admits it's been a hard transition since the show has ended.