Question: Who did George Sanders play in Alfred Hitchcock's first American project?

<P0-S0>  It was Hitchcock's first American project, and his first film under contract with producer David O. Selznick. <P0-S1>  The screenplay by Robert E. Sherwood and Joan Harrison and adaptation by Philip MacDonald and Michael Hogan were based on the 1938 novel of the same name by Daphne du Maurier. <P0-S2>  The film stars Laurence Olivier as the brooding, aristocratic widower Maxim de Winter and Joan Fontaine as the young woman who becomes his second wife, with Judith Anderson and George Sanders in supporting roles. <P0-S3> Rebecca is a 1940 psychological drama film directed by Alfred Hitchcock. <SEP> <P1-S0> George Henry Sanders (3 July 1906 – 25 April 1972) was a Russian-born English film and television actor, singer-songwriter, music composer, and author. <P1-S1>  His career as an actor spanned more than 40 years. <P1-S2>  His upper-class English accent and bass voice often led him to be cast as sophisticated but villainous characters. <P1-S3>  He is perhaps best known as Jack Favell in "Rebecca" (1940), Scott Folliott in "Foreign Correspondent" (1940) (a rare heroic part), Addison DeWitt in "All About Eve" (1950), for which he won an Academy Award, King Richard the Lionheart in "King Richard and the Crusaders" (1954), Mr. Freeze in a two-parter episode of "Batman" (1966), the voice of the malevolent man-hating tiger Shere Khan in Disney's "The Jungle Book" (1967), and as Simon Templar, "The Saint", in five films made in the 1930s and 1940s. <SEP> <P2-S0> Foreign Correspondent (a.k.a. Imposter and Personal History) is a 1940 American spy thriller film directed by Alfred Hitchcock. <P2-S1>  It tells the story of an American reporter who tries to expose enemy spies in Britain who are involved in a fictional continent-wide conspiracy in the prelude to World War II. <P2-S2>  It stars Joel McCrea and features 19-year old Laraine Day, Herbert Marshall, George Sanders, Albert Bassermann, and Robert Benchley, along with Edmund Gwenn. <SEP> <P3-S0> Britain contributed to the Manhattan Project by helping initiate the effort to build the first atomic bombs in the United States during World War II, and helped carry it through to completion in August 1945 by supplying crucial expertise. <P3-S1>  Following the discovery of nuclear fission in uranium, scientists Rudolf Peierls and Otto Frisch at the University of Birmingham calculated, in March 1940, that the critical mass of a metallic sphere of pure uranium-235 was as little as 1 to , and would explode with the power of thousands of tons of dynamite. <P3-S2>  The Frisch–Peierls memorandum prompted Britain to create an atomic bomb project, known as Tube Alloys. <P3-S3>  Mark Oliphant, an Australian physicist working in Britain, was instrumental in making the results of the British MAUD Report known in the United States in 1941 by a visit in person. <P3-S4>  Initially the British project was larger and more advanced, but after the United States entered the war, the American project soon outstripped and dwarfed its British counterpart. <P3-S5>  The British government then decided to shelve its own nuclear ambitions, and participate in the American project.