“We went to Paris for some reason, and he asked me to go to his hotel room. This parcel was delivered from some French clothes manufacturer. The jacket didn’t fit him so he told me to try it and it fitted. He said: ‘Well, you can have it.’ I thought: ‘Ooh, great!’ Must have cost a fortune.”

Get Back, which culminates in the band’s famous concert on the roof of Apple in London’s Savile Row, is exhaustive (and, for non-Beatles nerds, occasionally exhausting). But, from Johns’ perspective, is there anything Peter Jackson missed when he edited the 60 hours of footage and 150 hours of audio originally captured by the director Michael Lindsay-Hogg?

“On the second day, Paul stopped playing and asked me what to do with the intro of the song,” he replies (he can’t remember which song). Assuming that George Martin was producing the album, Johns was surprised to be consulted. 

“I was booked by Paul to engineer and to record the concert,” he says. “So he asked me to go to the rehearsals, because he wanted me involved from day one, so that I knew the material. And it never crossed my mind that it was a bit odd that Paul had booked me, not George.”

As it happened, the Beatles’ long-standing fifth man in the studio would only “come by for five or 10 minutes every day and just check out what was going on”, leaving Johns to undertake the bulk of the production. “But they didn’t need a bloody producer,” he says. “They were quite capable of doing it themselves.”