Who wrote the book that Peggy Robertson's 1948 movie is based on?
Peggy Robertson Margaret "Peggy" Robertson (née Singer; 13 September 1916 6 February 1998) was a British-born script supervisor and personal assistant to Alfred Hitchcock from the 1940s through the 1970s during which time she worked on the films "Under Capricorn" (1948) and "Stage Fright" (1950), "Vertigo" (1958), "Psycho" (1960), "The Birds" (1963), and all of the director's remaining films.
The Agitator The Agitator is a 1945 British drama film directed by John Harlow and starring William Hartnell, Mary Morris and John Laurie. Its plot follows a young socialist who is forced to question his beliefs when he unexpectedly inherits a large firm. It was based on the novel "Peter Pettenger" by William Riley.