In the Voldemort-cuddle scene, when Draco is unsure whether to leave the Hogwarts students and join the Death Eaters, it’s the urgency of his father’s call that gets his attention. It’s the softness of his mother that makes his decision. It was Helen’s ability to render the softer side of Narcissa’s personality that gave Draco the reason to walk. In art, as in life, I found it hard to say no to my mum.