Which screenplay by Kenneth Ross  was directed by Fred Zinnemann?
The Day of the Jackal (film) The Day of the Jackal is a 1973 Anglo-French political thriller film directed by Fred Zinnemann and starring Edward Fox and Michel Lonsdale. Based on the 1971 novel "The Day of the Jackal" by Frederick Forsyth, the film is about a professional assassin known only as the "Jackal" who is hired to assassinate French president Charles de Gaulle in the summer of 1963.
Inside Detroit Inside Detroit is a 1956 crime film noir directed by Fred F. Sears starring Dennis O'Keefe and Pat O'Brien.