Geno Washington, widely said to have stolen the show with his performance despite the legends on the bill, cut his teeth performing at soul clubs and had a big following amongst the Mods.
He told Inside Out: "The sun was shining, you could have been in Spain or California. "The guards had so much money stuffed in their pockets from bribes, they couldn't get more in.
"There were thousands and thousands of people there - Mods, Rockers, Hippies. People were hanging from the ceiling. The atmosphere was electric. "Anyone who was there that day will never forget it."
Whilst making the film everyone around that day in 1967 seemed to have a story to tell.