The movie opens with a Hearst Metrotone newsreel from the 1930s telling of the Iowa murder of Ellie Banner by Leonard Hill and Wesley Bruckner.
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A novelization, written by Richard Deming, was published (Beagle Books 94145) and rushed into bookstores to coincide with the release of the film.
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The film began work under the title The Best of Friends, but Otto Preminger protested to the Motion Picture Association because he had registered the similar title Such Good Friends.
Helen Mirren | Helen Keller | Helen | Helen of Troy | Helen Hayes | Helen Clark | Helen Reddy | Helen Frankenthaler | Helen Hunt | Helen Humes | Condensed matter physics | Helen Razer | Helen Fielding | Helen Allingham | Helen Storrow | Helen Shaver | Helen Caldicott | Organic matter | Matter of Britain | Helen Sjöholm | Helen Sharman | Helen Nicol | Helen Morgan | Helen Merrill | Helen Hay Whitney | Helen Hanft | Helen Fein | Helen Dunmore | Helen Callaghan | Helen Baylor |
Feldman's first credit as a film producer was the 1971 melodrama What's the Matter with Helen? starring Debbie Reynolds and Shelley Winters.
Dodd appeared in small roles in two movies written by Farrell, the TV production How Awful About Allan starring Anthony Perkins and Julie Harris and What's the Matter with Helen?