DIAMONDS ARE FOREVER (1971, UK, 120m, 12) *** Action, Adventure, Sci-Fi, Thriller dist. United Artists; pr co. Eon Productions; d. Guy Hamilton; w. Richard Maibaum, Tom Mankiewicz (based on the novel by Ian Fleming); pr. Albert R. Broccoli, Harry Saltzman; ph. Ted Moore (Technicolor | 2.39:1); m. John Barry; ed. Bert Bates, John W. Holmes;…