Short film showing Pink Floyd recording songs, for director Peter Whitehead's 1967 feature "Let's Spend Tonight In Swinging London". These sessions were recorded on 01/11/67-01/12/67 at Sound Techniques in London. Also shown in the film is the "14 Hour Technicolour Dream Extravaganza" happening at Alexandra Palace, in London, in April 1967, which also featured Yoko Ono, on the same bill. John Lennon & Indica Art Gallery owner John Dunbar are in the audience.