At the time of the film's production, much publicity was gained by Hitchcock's decision to cut Saint's waist-length blonde hair for the first time in her career. Hitchcock explained at the time, "Short hair gives Eva a more exotic look, in keeping with her role of the glamorous woman of my story. I wanted her dressed like a kept woman—smart, simple, subtle and quiet. In other words, anything but the bangles and beads type." The director also worked with Saint to make her voice lower and huskier, and personally chose costumes for her during a shopping trip to Bergdorf Goodman in New York City.