The film wisely resists the standard documentary technique of stringing together a series of talking heads - no small temptation, given the famous people rounded up for reminiscing.

Park your brain and enjoy the vibe.

The enduring mystery of what Michael Caine is thinking and feeling remains intact during his watchable, if somewhat exasperating docu-reminiscence of 1960s swinging London.

It was more than the flowering of a music scene, it was a cultural sea-change... a younger generation overwhelmed their elders and defied their conventions.