Kipps’ state of mourning requires adult emotions from Radcliffe. The scares are mostly in camera, not CG.

He’s no wizard, he’s a lawyer. And crucially, he’s often very alone...

“The thing I was worried about was not so much playing the side of him that’s been devastated by grief,” says Radcliffe.

“The main thing I was concerned about was the 20 minutes in the middle of the film that has no dialogue and is just me walking around this house. I was thinking, ‘God, will this be like watching paint dry? Will I just be making the same expressions of fear the whole time?’”