Which Alfred Hitchcock film is based on a novel by Winston Graham?

Marnie is a 1964 American psychological thriller film directed by Alfred Hitchcock. The screenplay by Jay Presson Allen was based on the 1961 novel of the same name by Winston Graham. The film stars Tippi Hedren and Sean Connery.

The music was composed by Bernard Herrmann, his last of seven critically acclaimed film scores for Hitchcock. Marnie also marked the end of Hitchcock's collaborations with cinematographer Robert Burks (his twelfth film for Hitchcock) and editor George Tomasini (who died later in the year).

Alfred Hitchcock began developing the film adaptation of Winston Graham's novel Marnie in 1961. He commissioned Joseph Stefano, the screenwriter of Hitchcock's recently released Psycho, to work on the script. Stefano made extensive notes and wrote a 161-page treatment. The director's first choice to play the title role, Grace Kelly, by then Princess Grace of Monaco, withdrew from the project when the citizens of Monaco objected to her appearing in a film, especially as a sexually disturbed thief.