Paul Dehn was the screenwriter for which 1974 British mystery?
Murder on the Orient Express (1974 film) Murder on the Orient Express is a 1974 British mystery film directed by Sidney Lumet, produced by John Brabourne and Richard B. Goodwin, and based on the 1934 novel of the same name by Agatha Christie.
Black Sunday (1977 film) Black Sunday is a 1977 American thriller film directed by John Frankenheimer, based on Thomas Harris' novel of the same name. The film was produced by Robert Evans, and stars Robert Shaw, Bruce Dern and Marthe Keller. It was nominated for the Edgar Allan Poe Award for Best Motion Picture in 1978. The screenplay was by Ernest Lehman, Kenneth Ross and Ivan Moffat. Ross had previously written the screenplay for "The Day of the Jackal", a similar plot-driven political thriller.