Paul McCartney on playing guitar with Paul Mescal: 'He knew it better than I did!'

Paul McCartney on playing guitar with Paul Mescal: 'He knew it better than I did!' Hey, I know you! exclaims Paul McCartney, gripping my hand as we walk into his office in central London. And while I'm realistic enough to know he doesn't really hold treasured memories of our previous encounters, I'm impressed by his ability to defuse the tension of Meeting A Beatle. We gather in Soho at lunchtime. Instead of Wild Honey Pie or Savoy Truffle, McCartney has opted for a simple bagel (topping: a terrifying blend of Marmite and hummus), which he prepared in a kitchenette next to his assistant's desk. As he eats, he scans a printed list of film titles - mainly vintage comedies - looking for something to play at his family movie night.