A spotty record of the 1973 Wembley concert, this is finally worth it for the performances. The twitchy style is of the zoom-in-and-cut-away variety, and secondary content offers sparse interviews with performers and too much crowd 'atmosphere'. There could have been more talk, because the interviews provide some lighter moments: Bill Haley theorises on fraternity, while Jerry Lee Lewis and Little Richard squabble for the title of king; Little Richard supports his claim with an impromptu, quivering solo of 'I Believe' as proof of his range. Darkness brings some relief from the overall restlessness as cameras concentrate more on performers and less on crowds. Chuck Berry's triumphant climactic set is shot in a thankfully straightforward manner.