Vanessa Kirby joins the show to discuss her haunting portrayal of a young mother who experiences an unfathomable loss in “Pieces of a Woman,” directed by Kornél Mundruczó and written by Kata Wéber. The role marks Kirby’s first lead in a feature film, and her performance was awarded the Best Actress Volpi Cup at this year’s Venice Film Festival. Kirby began her career in the theater, later made her television debut in “The Hours,” delivered scene-stealing work in the action franchises “Mission Impossible” and “Fast & Furious Presents: Hobbs & Shaw,” and her critically acclaimed performance as Princess Margaret in “The Crown” made her a BAFTA winner and Emmy nominee.   In this interview, she shares the intensive research she undertook to prepare for “Pieces of a Woman,” what she was focused on getting right in her performance, and her experience shooting the film’s astonishing 23 minute opening sequence that was shot in one take. She also reflects on the beginning of her career, the kind of characters she’s been drawn to, and she shares her advice for young actors.