unlock his repressed past. Two point-of-view shots were achieved by building a large wooden hand (which would appear to belong to the character whose point of view the camera took) and out-sized props for it to hold: a bucket-sized glass of milk and a large wooden gun. For added novelty and impact, the climactic gunshot was hand-coloured red on some copies of the black-and-white film. The original musical score by Miklós Rózsa makes use of the theremin, and some of it was later adapted by the composer into Rozsa's Piano Concerto Op. 31 (1967) for piano and orchestra. The spy film Notorious followed next in 1946. Hitchcock told François Truffaut that Selznick sold him, Ingrid Bergman, Cary Grant, and Ben Hecht's screenplay, to RKO Radio Pictures as a "package" for $500,000 (equivalent to $ million in ) because of cost overruns on Selznick's Duel in the Sun (1946). Notorious stars Bergman and Grant, both Hitchcock collaborators, and features a plot about Nazis, uranium and South America. His prescient use of uranium as a plot device led to him being briefly placed under surveillance by the Federal Bureau of Investigation. According to Patrick McGilligan, in or around March 1945, Hitchcock and Hecht consulted Robert Millikan of the California Institute of Technology about the development of a uranium bomb. Selznick complained that the notion was "science fiction", only to be confronted by the news of the detonation of two atomic bombs on Hiroshima and Nagasaki in Japan in August 1945. Transatlantic Pictures Hitchcock formed an independent production company, Transatlantic Pictures, with his friend Sidney Bernstein. He made two films with Transatlantic, one of which was his first colour film. With Rope (1948), Hitchcock experimented with marshalling suspense in a confined environment, as he had done earlier with Lifeboat. The film appears as a very limited number of continuous shots, but it was actually shot in 10 ranging from 4- to 10 minutes each; a 10-minute length of film was the most that a camera's film magazine could hold at the time. Some transitions between reels were hidden by having a dark object fill the entire screen for a moment. Hitchcock used those points to hide the cut, and began the next take with the camera in the same place. The film features James Stewart in the leading role, and was the first of four films that Stewart made with Hitchcock. It was