By Zoe Delaney Fans of The Beatles got emotional on Sunday night as one of John Lennon’s son’s collected an Oscar on stage inside the Dolby Theatre in L.A. The Oscar for animated short film was presented to War Is Over! Inspired By The Music of John & Yoko during the 96th Academy Awards on Sunday night. Sean Ono Lennon, who wrote the anti-war story featuring tracks from his parents Beatles star John Lennon and his artist wife Yoko Ono, was among those accepting the prize along with Dave Mullins and Brad Booker. As he accepted the award, Sean, 48 gave a shout out to his mother Ono, who he said …