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.
Matt Ross (actor) Matthew Brandon "Matt" Ross (born January 3, 1970) is an American actor, director and screenwriter. He wrote and directed the feature film "Captain Fantastic", starring Viggo Mortensen, for which he won Un Certain Regard (recognition of young talent) at the 2016 Cannes Film Festival.