A number of Nicholas Roeg's films explore the collision of two cultures: Australian aborigine vs. urban Caucasian in "Walkabout" (1971) ... English vs. Italian in "Don't Look Now" (1973) ... and alien vs. humankind in "The Man Who Fell To Earth" (1976). "Performance" (1970) explores the collision between the world of a sadistic extortion artist and the world of a retired rock star and his companions. But the plot merely serves as a vehicle to convey compelling images and music -- the film is surrealistic and imaginative rather than realistic or film noire. At one point in the film, Jagger reads from Jorge Luis Borges's short story "The South," while his consort prepares a lunch of psychedelic mushrooms. The film touchs on BDSM sex, the harder side of the gay world, extortion, art, and imagination. Reality is not always what it seems. Jagger's performance of "Memo from Turner" is a minor triumph: "Remember who you say you area / And keep your noses clean / Boys will be boys and play with toys / So be strong with your beasts."