By the time Wolfgang Büld trained his camera on "Punk in London", it was (at the accelerated and often frightening pace noted by Jon Savage in "England's Dreaming") already becoming an artifact. The Sex Pistols found themselves at the center of a media frenzy and had been banned from so many UK venues that, for all practical purposes, they were no longer a functioning group--so they're not in the film. Other bands attempt to fill the void left by the Pistols: The Clash, magnetic performers but a little too studied and eager to be stars; X-Ray Spex, distinguished by the intelligence and songwriting talent of Poly Styrene; and the Adverts, who, in the guise of two-and-a-half-minute pop anthems, passionately urge their audience to seize the moment before it passes. (We're also treated to the working class anger of Chelsea, the plain old opportunism of the Killjoys and Wayne County, and the good-natured idiocy of fans at a Lurkers show.) Here is the London punk scene as it was just before the bottom dropped out in early 1978, from the bandwagon-jumpers to those who were trying to maintain some sense of unity and purpose. Lots of good performance footage and some interesting interviews, too.