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.
Across to Singapore Across to Singapore is a 1928 American silent romantic drama film directed by William Nigh, and starring Ramon Novarro and Joan Crawford. The plot involves a love triangle between a woman and two brothers, set on board ship and in Singapore. The screenplay was written by Ted Shane based on the novel "All the Brothers Were Valiant" by Ben Ames Williams.