I just watched The Wrong Man. Very fine little film. My friend Doug Cummings recommended it to me years ago, in the context of my Soul Food Movies project, and now I see why.
Even apart from that aspect of the film, it connects with me in a way some other Hitchcock's don't: it seems less cold, more compassionate (or at least empathetic). I like the aesthetic, too: there is the suggestion that it's influenced by the new awareness of foreign film in the mid-fifties - particularly the post-war realism of Rossellini, Satyajit Ray, perhaps Bresson.
I find it intriguing to notice that all three of those film-makers were very interested in spiritual questions, even as their aesthetic emphasized unvarnished reality. And fascinating that this sparse, essentially realist film should also be Hitchcock's most explicitly religious - though in a complex way.
Some of that faith element must be credited to the screenwriter (which is so often a glaring oversight in film criticism): playwright Maxwell Anderson, son of a Baptist preacher, whose plays include Journey To Jerusalem, Miracle of the Danube, The Eve of St Mark, Joan of Lorraine (connected with St Joan of Arc), and Lost in the Stars (based on Cry The Beloved Country).
It's easy to over-emphasize (or over-simplify) Hitchcock's Catholicism, as it is Anderson's Baptist background, but there's clearly something going on here.
Thinking about the film's connection to the Italian Neo-Realists or Robert Bresson, and their use not only of real locations but also non-professional actors (or "models," Bresson's preferred term), I found these notes from the TCM website:
In a February 1957 American Cinematographer article, Hitchcock was quoted as saying, "I want it to look like it had been photographed in New York in a style unmistakably documentary." According to reviews and contemporary news items, Balestrero's 74th Street home in Jackson Heights, the Stork Club, the 110th and Roosevelt Avenue police stations, Ridgewood Felony Court, and the actual courtroom used for Balestrero's trial at Queens Felony Court were used as location sites in the film. The Greenmont Sanitarium in Ossining, NY and Edelweiss Farm in Cornwall, NY were also real locations from Balestrero's story. In addition, Hitchcock filmed on Queens and Brooklyn streets at cafeterias, delicatessens and liquor stores. The American Cinematographer article reported that O'Connor's office in the Victor Moore Arcade was also used as a shooting site.
According to modern sources, Hitchcock joked that he needed to add to the film all the reality he could get, because the premise of the true story was so unbelievable. Therefore, he used real people from some of the incidents in Balestrero's life in the film. According to the American Cinematographer article, the husband-and-wife liquor store owners, a policeman, detectives and Cornwall resort owners were real people who portrayed themselves in the film. Sherman Billingsley, the well-known proprietor of the Stork Club, also appeared as himself in the film.