I Confess is a 1953 American FILM NOlR directed by Alfred Hitchcock and starring Montgomery Clift, Anne Baxter and Karl Malden. The film is based on a 1902 French play by Paul Anthelme titled Nos deux consciences (Our Two Consciences), which Hitchcock saw in the 1930s.
Filming took place largely on location in Quebec City with numerous shots of the city landscape and interiors of its churches and other emblematic buildings, such as the Château Frontenac.
You can find out more about this movie from Wikipedia and there are also reviews from the movie blogs Film Noir of the Week. Slant magazine, The Guardian and Catholic Insight also have online reviews.