evidence: Christopher Nolan's biopic Oppenheimer dominated at the Screen Actors Guild (SAG) Awards on Saturday, where several winners paid tribute to last year's actors' strike. Cillian Murphy won best actor, Robert Downey Jr was awarded best supporting actor, and the Oppenheimer ensemble won outstanding performance by a cast. Speaking at the Shrine Auditorium in Los Angeles, Irish star Murphy said he was proud to be given the award by his fellow professionals. He said: "Twenty-eight years ago when I was trying to become an actor, I was a failed musician, and I felt extremely like an interloper. But looking out on all of you guys here today, I know I'm part of something truly wonderful." Oppenheimer tells the life story of J. Robert Oppenheimer, the man who is often called "the father of the atomic bomb".