Cinema has a troubled relationship with the Holocaust. It is repeatedly drawn to the subject, which seems to offer a shortcut to moral gravity, emotional depth and the highest possible stakes – elements every storyteller yearns for – and yet there is so much that can go wrong. For one thing, the very act of depicting the horror of the Nazi murder of 6 million Jews risks minimising it. To pick one crude example, no matter how extreme a diet an actor might undertake, they can never resemble the Muselmänner, the walking skeletons who populated the death camps. Whatever can...