Back in 2023, a bitter debate erupted over the editing of Roald Dahl’s children’s books. His publishers, Puffin Books, had worked with Dahl’s estate (now owned by Netflix) to remove references to violence, body size, mental health, gender and skin colour. Now, a new play about an incident in Dahl’s later life is focusing on another controversy. Giant (written by Mark Rosenblatt) is playing at London’s Harold Pinter Theatre until August 2. It features a masterly performance by John Lithgow in the role of Dahl. The play tracks the fallout from his 1983 review of God Cried, a photographic book...