The Mask of Dimitrios is a 1944 American film noir directed by Jean Negulesco and written by Frank Gruber, based on the 1939 novel of the same name written by Eric Ambler (in America the novel was titled A Coffin for Dimitrios). Ambler is known as a major influence on writers and an inventor of the modern thriller genre. The drama features Sydney Greenstreet, Zachary Scott (as Dimitrios Makropoulos), Faye Emerson and Peter Lorre. This was the first film for Scott after signing a contract with Warner Bros. Pictures. Wikipedia
Dimitrios Makropoulos: Peterson was always too ingenious; and ingenuity is never a substitute for intelligence.