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Working titles of the film were Odor of Violets and Strange Shadows. A Hollywood Reporter news item on May 13, 1942 noted that M-G-M was seeking Henry Wilcoxon for the cast, but he did not appear in the released film. News items also include Tom Murray, William Bailey and Hal Le Sueur in the cast, but their appearance in the film has not been confirmed. According to a Hollywood Reporter news item on July 10, 1941, screenwriter Howard Emmett Rogers was working with Peter Ruric on the script. Ruric is not credited in other sources and the extent of his contribution to the released film has not been determined. A Hollywood Reporter news item on October 12, 1942 noted that "Friday" was making an extensive personal appearance tour with his trainer, William Steuer, that was designed to focus attention on the government's need for more dogs in war work.
Eyes in the Night was Ann Harding's first film since Love from a Stranger, a 1937 British-U.S. co-production produced in 1937 (see AFI Catalog of Feature Films, 1931-40; F3.5389). The character "Duncan Maclain" was revived for a 1945 M-G-M film entitled The Hidden Eye, also starring Edward Arnold and "Friday" as his dog and based on a Baynard Kendrick novel. Frances Rafferty, who has a minor role in Eyes in the Night, was the second lead in the 1945 picture.