Avalanche Express is a 1979 action thriller directed by Mark Robson. The film follows General Marenkov (Robert Shaw) as he defects from the Soviet KGB and attempts to escape to the West. To aid in the attempt, the CIA sends agent Harry Wargrave (Lee Marvin). When Marenkov tells Wargrave that the Russians are working to develop biological weapons, Wargrave sets-up an elaborate escape via rail on the Atlantic Express in an attempt to lure the Russian into revealing their agents. Pursued by ruthless spy-hunter Nikolai Bunin (Maximilian Schell), Marenkov and Wargrave must elude capture and survive an avalanche. Throughout the film, actor Robert Shaw was very ill. He subsequently died during post production. As his voice was somewhat shaky, all of his lines in the movie were re-voiced by actor Gene Cormon. Director Mark Robson also died from a heart-attack during filming. The film serves as a monument to the art and dedication of both men.