Alfred Hitchcock Ben 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. 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" (1944). The film appears to
Alfred Hitchcock (1967) for piano and orchestra. "Notorious" (1946) followed "Spellbound". Hitchcock told François Truffaut that Selznick had sold him, Ingrid Bergman, Cary Grant, and the screenplay by Ben Hecht, to RKO Radio Pictures as a "package" for $500,000 () because of cost overruns on Selznick's "Duel in the Sun" (1946). "Notorious" stars Bergman and Grant, both Hitchcock regulars, 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 McGilligan, in or around March 1945 Hitchcock and