Scarlett Johansson and James D’Arcy have signed on for “Alfred Hitchcock and the Making of Psycho,” joining a cast that already includes Anthony Hopkins and Helen Mirren.

Johansson will play Janet Leigh, the star of the 1960 film, while D’Arcy will portray Anthony Perkins, who originally played the creepy Norman Bates. Hopkins and Mirren will play Alfred Hitchcock and his wife.

“Making of Psycho” will detail Hitchcock’s challenges while filming “Psycho,” according to Variety, and the film’s behind-the-scenes approach has already drawn comparisons to “My Week With Marilyn.” Sacha Gervasi will direct the movie, while Thom Thayer and Montecito Picture Company’s Ivan Reitman, Tom Pollack and Joe Medjuck will produce it.