linguistic:voice_change, quality:correction
Casting

Vera Miles, who was under personal contract to Hitchcock and had appeared both on Alfred Hitchcock Presents and in The Wrong Man, was originally scheduled to play Madeleine, and modeled for an early version of the portrait of Carlotta. Following delays, including Hitchcock becoming ill with gallbladder problems, Miles became pregnant and had to withdraw from the role. The director declined to postpone shooting, and cast Kim Novak as Miles' replacement. By that time, Novak had delayed prior film commitments and a vacation promised by Columbia Pictures, the studio that held her contract, and Miles had given birth and was available for the film. Nevertheless, Hitchcock proceeded with Novak. Columbia head Harry Cohn agreed to lend Novak to Vertigo if Stewart would agree to co-star with Novak in Bell, Book and Candle, a Columbia production released in December 1958.