In a new interview with Billboard, Paul McCartney revealed that he initially thought that the film Yesterday was a "terrible idea." Yesterday is a film about the world if the Beatles never existed. McCartney said, “Richard Curtis, who [directed] Love Actually, wrote to me with the idea. And I thought, ‘This is a terrible idea,’ but I couldn’t tell him, so I said, ‘Well, that sounds interesting — good luck.’ I didn’t think anything more of it."

He continued, "Then someone said Danny Boyle would direct it, and I thought, ‘They must think they can pull it off.'” McCartney said that he and his wife Nancy saw the film at a theater in the Hamptons. He told the magazine, “Only a couple of people saw us. We were in the back row, giggling away, especially at all the mentions of ‘Paul McCartney.’ A couple of people in front of us spotted us, but everyone else was watching the film. We loved it.”

PAUL MCCARTNEY OPENS UP ABOUT WORKING WITH KANYE WEST

In other news, McCartney also talked about working with Kanye West. He said, “I had no idea what was going to happen. I didn’t want it to be at his house or my house, because it could be awkward if one of us wanted to leave.”

They decided to meet at a cottage at the Beverly Hills Hotel. He explained, “I was sitting around, strumming the guitar — that’s normally how I start a song — and Kanye was looking at his iPad, basically scrolling through images of Kim [Kardashian]. So we were telling stories, and at one point I told him how ‘Let It Be’ came from a dream about my mother, who had died years before, where she said, ‘Don’t worry, just let it be.’"

McCartney continued, "He said, ‘I’m going to write a song about my mother,’ so I sat down at this little Wurlitzer keyboard and started playing some chords, and he started singing. I thought, ‘Oh, are we going to finish this?’ but that was that. And it became ‘Only One.'”