Guilty Bystander is a 1950 independent film production, considered film noir, starring Zachary Scott and Faye Emerson. The film was the last film appearance for character actor Mary Boland. Bosley Crowther, writing for the New York Times, calls Guilty Bystander's plot as average but notes "... the slow, sultry, steaming sadism that is usually standard in this type of film is rather effectively accomplished. The photography is full of heavy moods. And some of the melodramatic action, such as a chase in the subway, is good.