They are simply lovers who experience a passing connection. Their search for something deeper (which eventually takes them on an ayahuasca trip overseen by a shaman played by an unrecognisable Lesley Manville) is thwarted by what the director calls the “asynchronous” nature of their dynamic.

How loud was the conversation back then over authentic casting? “It was never even discussed,” Craig says, looking askance. Guadagnino is equally dismissive: “Sexuality is not one thing. Is it five things, is it seven? There is no such thing as ‘the gay’.” Craig has another thought: “Sexuality is a very modern idea,” he says. “People’s sexuality, or whatever they desire, is as individual as a fingerprint.”

Does sharing a vocation reduce the chances of being asynchronous? “No, it enhances them because film-makers are radical narcissists who just want to do their own thing. It’s a disaster.”

Guadagnino goes into splutter mode again. “I would never put myself on the same shelf as Daniel. Come on, he’s an icon! I’m a grey, balding Italian-Algerian director who’s made some movies. I’m boring.” Craig leans forward: “So am I. Let’s say I wasn’t famous, and I was a free agent. It either happens or it doesn’t happen. Those moments are magic. I think of moments like that from my life and, my God, they’re electrifying. Whereas if you’re out on the prowl, that’s really sad. And look, Lee sort of was on the prowl. But he wasn’t looking for what he found with Allerton. That’s what I’m interested in capturing as an artist. The moment where you go, ‘Oh fuck!’”