Kirby, best known for her role as Princess Margaret in Netflix’s The Crown, wowed audiences with her raw performance in Pieces of a Woman as a mother struggling with the loss of a child, and her charming, seductive turn in Mona Fastvold’s The World to Come, in which she plays a 19th-century American pioneer wife having a love affair with a female neighbor (played by Fantastic Beasts actress Katherine Waterston).