The 1941 film which has the only Oscar-winning performance in a Hitchcock movie is "Suspicion". The film is a romantic psychological thriller. It stars Cary Grant and Joan Fontaine as a married couple. It also features Sir Cedric Hardwicke, Nigel Bruce, Dame May Whitty, Isabel Jeans, Heather Angel, and Leo G. Carroll. The screenplay for "Suspicion" was based on Francis Iles's novel 'Before the Fact' (1932). Alfred Hitchcock and Harry E. Edington produced the film. RKO Radio Pictures Inc. begun distribution in November 1941.

In the film, charming scoundrel Johnnie Aysgarth (Cary Grant) woos wealthy but plain Lina McLaidlaw (Joan Fontaine). She runs away with him despite the warnings of her disapproving father (Cedric Hardwicke). After their marriage, Johnnie's risky financial ventures cause Lina to suspect he's becoming involved in unscrupulous dealings. When his dear friend and business partner, Beaky (Nigel Bruce), dies under suspicious circumstances on a business trip, she fears her husband might kill her for her inheritance.

In the US, the film made $1.8 million US dollars at the box office in 1942. It earned a profit of $440,000. Regarding accolades, "Suspicion" was nominated for the 1942 Academy Award for Best Picture, as well as Best Original Score, and Joan Fontaine won the Oscar for Best Actress.

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