Strawberry Field was the name of a Salvation Army Children's Home just around the corner from Lennon's childhood home in Woolton, a suburb of Liverpool.
Lennon and his childhood friends Pete Shotton, Nigel Whalley, and Ivan Vaughan used to play in the wooded garden behind the home.
One of Lennon's childhood treats was the garden party held each summer in Calderstones Park (located next to the Salvation Army Home) every year, where a Salvation Army band played.
Lennon's aunt Mimi Smith recalled: "As soon as we could hear the Salvation Army band starting, John would jump up and down shouting, 'Mimi, come on. We're going to be late.'"
The promotional film it was filmed on 30 and 31 January 1967 in Knole Park in Sevenoaks, and was directed by Peter Goldmann. Goldmann was a friend of Klaus Voormann who recommended the Swedish TV director to the group.