“Happy Xmas (War Is Over),” that Ono’s parents released in 1971. Sean was born to John Lennon and Yoko Ono four years later. “The tale of our pigeon felt like it needed to be put into an ...

The film and book were based on the holiday-anti-war classic, “Happy Xmas (War Is Over),” that Ono's parents released in 1971. Sean was born to John Lennon and Yoko Ono four years later. “The tale of ...