The Kremlin Letter (1970) is a terrific movie that's very difficult to find on VHS or DVD. Starring Max Von Sydow, Orson Welles and Patrick O'Neal playing a naval man drafted into the Intelligence Community because he has a photographic memory and is able to speak fluent Russian. He is given the task of retrieving an embarrasing letter between ambassadors that could start WWIII. Helping him is a motley team of undercover (and underworld) sorts, including Richard Boone as O'Neal's superior, charming and menacing both at the same time, George Sanders as a drag artist, and a beautiful safecracker (who opens safes with her feet while lying on her back), played by Barbara Parkins, with whom O'Neal falls in love. The characterizations and the acting are first-rate and filming was mostly done in Helsinki. Huston, who also plays a small role, directs with a deceptive touch of nonchalance that seems to imply wariness and uninvolvement but in fact, the film is a highly absorbing tale that sustains interest from beginning to end. Ending has a helluva twist. One of the best spy movies ever.
If you miss the first five minutes, you miss one suicide, two executions, one seduction and the key to the plot!