Director Alfred Hitchcock considered Marlon Brando for the leading male role.

The credited screenwriter of the Alfred Hitchcock film thought Finch would be perfect to play Mark Rutland.

According to her autobiography, she wanted to play Lil Mainwaring.

When Alfred Hitchcock announced he would reunite with Grace Kelly for this dark, romantic thriller, Grant was quoted as saying he would love to do the movie, too, but had not yet been asked.

Alfred Hitchcock put the young actress through makeup, costume, and acting tests to consider her to play the sexually troubled compulsive thief. Griswold retired from the screen to become a wife and mother.

The pretty blonde actress was offered to Hitchcock as a possibility to play the troubled thief who assumes various disguises.

Hudson met with director Alfred Hitchcock for the role of the Philadelphia book publisher and widower who knowingly marries a beautiful thief.

Jill Ireland auditioned to play the lead role.

Grace Kelly was director Alfred Hitchcock's first choice and was to be her comeback film but was busy being the princess of Monaco.

Alfred Hitchcock briefly considered Miles, whom he had hoped to star in "Vertigo," to play the beautiful, troubled compulsive thief.

Director Alfred Hitchcock had Montgomery in mind to play Marnie's rival for the attentions of Mark Rutland.

When Alfred Hitchcock was preparing the film "Marnie" in 1962, he had already "unofficially" cast Grace Kelly in the title role and was considering Paul Newman in the role of Mark Rutland. Newman wasn't interested and the film was postponed until 1964 when 'Tippi' Hedren and Sean Connery were finally cast. Newman would later star in Hitchcock's "Torn Curtain" (1966).

Alfred Hitchcock considered the handsome young star for the romantic leading male role in his psychological thriller-love story. The director generally preferred leading men with dark hair to contrast with his famous elegant blondes.

The beautiful, talented actress was suggested to director Alfred Hitchcock when his original star Grace Kelly withdrew from the project.

One of the film's screenwriters suggested to director Alfred Hitchcock that he consider the beautiful Oscar-winner -- his star of "North by Northwest" -- to play the role in the project from which Grace Kelly had pulled out.

Alfred Hitchcock contacted the great stage actress about the possibility of playing the strange, cold mother of the heroine if Louise Latham, a film novice, didn't work out.

After teaming with 'Tippi' Hedren in "The Birds", Director Alfred Hitchcock considered re-teaming them in "Marnie", but decided on Sean Connery instead after screenwriter Jay Presson Allen suggested him.

The Oscar-winning actress from "East of Eden" was considered to play "Bernice Edgar," the complex, secretive, religiously pious mother of the troubled heroine.