Documentary filmmaker Claudio Masenza, cinematic chronicler of the lives of Marlon Brando and James Dean, turns his attentions to the tragic film idol Montgomery Clift. Masenza offers a cursory synopsis of Clift's stage work (including The Skin of Our Teeth), then launches into a paean of the actor's film career, beginning with The Search (1947) and ending with The Defector (1966). It comes as no surprise that the film dwells upon Clift's erratic behavior, his quicksilver temperament, his sexual ambiguity, and his near-fatal 1957 auto accident. At 2 hours, the film leaves few stones unturned, though repetition is the order of the day during some stretches. Still, Montgomery Clift is a valuable primer for anyone unfamiliar with this compellingly unique performer.