The world première of The Beatles' animated feature film, Yellow Submarine, took place on this evening at the London Pavilion on Piccadilly Circus.
Although the group had largely retreated from the public eye in recent months, with their trip to India and the recording of the White Album, their popularity remained undiminished. As with their previous film openings, large crowds turned out, blocking streets and bringing traffic to a standstill.
Among the other guests were The Rolling Stones' Keith Richards, plus members of The Who, Status Quo and Grapefruit.
After the première The Beatles went to a celebratory party at the Royal Lancaster Hotel, where the in-house discothèque was renamed Yellow Submarine for the occasion. It retained the name for several years after.
At the party Paul McCartney spoke to Clem Curtis, lead singer of The Foundations, for whom he promised to write a song.