Daniel Radcliffe is relieved that 18-year-olds are no longer compelled to do National Service. “I’m not sure I’d make a particularly good soldier,” he says. “I don’t like the idea of being told I have to use a weapon. I don’t think I’d be able to kill someone.”

“History can sometimes feel like a list of facts,” he says. “It becomes interesting to me when you can envisage what an individual might have been thinking at the time of a momentous event. The First World War is one of the most grotesque things to have happened to the human race, but the one thing you can take from it is that it tells us something about human beings’ capacity for survival and the desire to live.”

“It was reported that I came into all this money on my 18th birthday but I’ve actually had access to it since I was 17,” he says. “Everyone’s a bit surprised to learn that, because I haven’t really done anything with it.”

“I don’t know how they’re going to do Harry Potter and the Deathly Hallows because it’s massive,” he says. “I was reading it and thinking, ‘What in here can they possibly edit out for the film?’”

He only discovered how the saga concluded at the same time as everyone else did, after the book went on sale in July. “I asked Jo [JK Rowling] a question about it once and she gave me a very cryptic answer, so I did have an inkling,” he says. “Everyone was saying, ‘Two characters are going to die’ but I always thought it would be way more than that. And I was right – it was a bloodbath! I loved it.”