MARATHON MAN opens in NY. Directed by John Schlesinger. Written by William Goldman from his novel. Gripping 1970s thriller with Dustin Hoffman as New York graduate student who, following his brother's brutal murder, finds himself drawn into a sinister international conspiracy fronted by a treachorous govt. agent and a malevolently lethal, diamond smuggling, ex-Nazi death camp doctor. With Lawrence Olivier, Roy Scheider, William Devane and Marthe Keller.