 "Black Swan" co-writer John J. McLaughlin wrote the first screenplay drafts; subsequently, Rebello wrote additional uncredited drafts that shifted the story's focus away from Ed Gein and instead toward the complex personal and professional relationship of Hitchcock and his wife, Reville, during the filming of "Psycho".Much of the film's casting was announced in March 2012.On March 1, 2012, Scarlett Johansson and James D'Arcy were announced to play the stars of "Psycho", Janet Leigh and Anthony Perkins.