Writer Richard Curtis, of the Beatles-themed film, 'Yesterday', explained that he originally planned to include all four members of the Beatles in the movie, but only John Lennon made the final cut.
Curtis said that he imagined Lennon took inspiration from when he was living in the port city of Liverpool. "[Y]ou get the sense that he's been a sailor, that he's travelled around the world, that he's been political. He says at one point that he's fought for a lot of things and won once or twice, and also that he's made some brave decisions on love, as John did," Curtis explains. "We're not specific about who with, but it's the idea that he had to fight to get love right, which John did."
In earlier versions of the script, Curtis had Malik run into George Harrison and Ringo Starr at a pub in Liverpool. "It was, I hope, a sweet scene, and they were just two delightful, oldish men who'd once been in a band together," he said. "[T]hey were clearly music enthusiasts who had never got any further. Happy people who loved music, like so many of us do, and formed a band or been in a pub band."
Curtis said that Paul McCartney was meant to make an appearance at the end of the film to make a reference to the Beatles' track, 'When I'm Sixty-Four'.
Curtis explained, "At the very end [Jack] was going to move to the Isle of Wight, to a cottage, and you were going to hear outside his window someone saying, 'Vera, Chuck, Dave!' There were going to be three dogs, and Paul was going to be walking them."
Curtis explained the final decision to only have Lennon's appearance in the film, "It was the scene that had the most meaning, and was in some ways the pivotal scene of the film."