Anita Pallenberg, instantly recognisable as a member of The Rolling Stones' rock 'n' roll circus in the Sixties and Seventies, was no docile groupie. Fluent in four languages, she partied with the jet set in Rome, met Warhol, Ginsberg and Ferlinghetti in New York, was at home with London's leading lights of popular culture and went on to star in over a dozen films, perhaps most notably in Performance. A German-Italian rebel...