“I was certain that I didn’t want David to appear in Jodie’s costume. I think the notion of men dressing in ‘women’s clothes’, the notion of drag, is very delicate. I’m a huge fan of that culture and the dignity of that, it’s truly a valuable thing. But it has to be done with immense thought and respect. With respect to Jodie and her Doctor, I think it can look like mockery when a straight man wears her clothes. To put a great big six-foot Scotsman into them looks like we’re taking the mickey.

Also, I guarantee you it’s the only photograph some of the papers would print for the rest of time. If they can play with gender in a sarcastic or critical way, they will.”