Among the little-known gems: "Story of a Love Affair" (1950), Antonioni's first feature, which is an adaptation of James M. Cain's "The Postman Always Rings Twice" ; "Chung Kuo China" (1972), a four-hour documentary of daily Chinese life during Mao's Cultural Revolution; and "The Mystery of Oberwald" (1980), picked by Time magazine as one of the best films of 1980, yet the adaptation of Jean Cocteau's "The Eagle Has Two Heads" has never been released in North America.