View a small collection of classic movie posters and lobby cards used during the film's original 1929 release.

Internet Movie Database provides some background information about this Alfred Hitchcock thriller, his first "talking picture."

Offers a favorable review of this groundbreaking blend of silent and sound cinema from Alfred Hitchcock. Includes a photo from the film.

Read an analytical essay by Stephen Brophy, originally published in CineAction, entitled "The Use of Glass in Alfred Hitchcock's Blackmail."