Murder! (1930 film) names of the two principal characters. The portrayal of the character Sir John Mernier was loosely based on that of the actor Gerald du Maurier, who was a friend of Hitchcock. Hitchcock later adapted three novels written by du Maurier's daughter Daphne du Maurier: "Jamaica Inn", "Rebecca" and "The Birds". Hitchcock makes his cameo appearance in the film as a man walking past the murder victim's house. The film's sets were designed by the art director John Mead. The German language version of the film, "Mary", was shot simultaneously on the same set with German speaking actors. Miles Mander reprised
George du Maurier up to believe that his aristocratic grandparents fled France during the Revolution, leaving vast estates behind in France, to live in England as émigrés. However, du Maurier's grandfather, Robert-Mathurin Busson, was actually a tradesman who left Paris in 1789 to avoid fraud charges, and later changed the family name to du Maurier. Du Maurier studied art in Paris, and moved to Antwerp, Belgium, where he lost vision in his left eye. He consulted an oculist in Düsseldorf, Germany, where he met his future wife, Emma Wightwick. He followed her family to London, where he married Emma in 1863. The couple