For die-hard fans of Pink Floyd only. This is a history-lesson into the psychedelic London underground of the mid-60's, where light-shows, "Happenings", Beat-poetry, and spacey music were all the rage. This film is mainly several pieces of concert-footage of Pink Floyd in its original incarnation, when Syd Barret was still in the band, prior to him loosing his marbles and being replaced by David Gilmour. You see Syd and the band playing some long sets of "Interstellar Overdrive" on stage under strobe-lights, a piece of music that true fans love and which the uninitiated often find meandering and boring due to the modern short-attention span. This is Space-Rock, it ain't Britney Spears. You get to hear Allen Ginsburg recite poetry over images of the London night-life. You see John Lennon attending one of Yoko Ono's famous performance-art pieces, prior to them having met. You see Eric Burdon walking around. It's basically a slice-of-life in the heart of what's now called "the Swinging 60's". View it, if you can find it, for the history, if nothing else. For Floyd fans it's one of very few opportunities to see Syd Barret playing with the band, which is reason enough to seek it out.