Pink Floyd London '66-'67 (1967)

Described as a 'promotional trailer for Tonite Let's All Make Love in London', this is rather long for a trailer (31 minutes), so it is generally considered as a film in its own right. It is basically a collage of rehearsal scenes alternating with some musical show or 'happening', with people dancing, and a general atmosphere of psychedelia. Curious to see, but not structured enough to deserve a second thought.