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.
Frederick Rosse Frederick Rosse (1867 – 20 June 1940) was an English composer of light music and operetta. After studying music in Germany and elsewhere, he began his career as a musical director at London theatres. He composed suites of incidental music for several plays, orchestral suites and songs. His "Doge's March" from his music for "The Merchant of Venice" was his most enduring piece.