Donald Cammell and Nicolas Roeg’s Performance was shot in July 1968, but its release was postponed by a skittish Warner Bros. until August 1970. The timing couldn’t have been better, since the film not only perfectly encapsulates Swinging London’s faith in “sex, drugs, and rock ‘n’ roll” but also effectively hammers the last nail in the counterculture’s coffin. As a sort of epilogue to the Rolling Stones’s disastrous concert at Altamont, Performance illustrates precisely what can happen in the void left gaping open when performers stop performing.

The film’s title is aptly overdetermined. Reclusive rock star Turner (Mick Jagger) is obviously one kind of performer. But performer, in British slang, also refers to mobsters like Chas (James Fox). In the film, the worlds that these two men inhabit collide and entwine in fascinating fashion. Over the course of the first half, which is dedicated to delineating...