Antonioni's Blowup featuring the Yardbirds

Our hero is on the hunt for Vanessa Redgrave. Jimmy Page plays the riff. Michael Palin is in the sullen crowd. Jeff Beck smashes his guitar at the director's request. When the guitar neck is hurled into the crowd, the kids turn from unimpressed spectators to mad consumers. Out on the street, the guitar fragment loses its context and its worth.