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Connie Francis sang "In the Valley of Love" over the opening credits, but does not appear in the film. Although Arthur Dales was given credit for the screenplay when the picture was initially released, the film was actually written by blacklisted screenwriter Howard Dimsdale, whose credit was officially restored by the WGA in the late 1990s. Although a March 1958 Hollywood Reporter production chart states that Bob Goldstein was to produce this picture, the extent of his participation in the released film has not been determined.
The film's opening scenes, which take place in England, were shot at Pinewood Studios, but most of the film was shot in various locations in Spain's Andalusia province. A Hollywood Reporter news item, dated April 2, 1958, stated that Twentieth Century-Fox was shooting the film in Spain in order to "defreeze some... frozen funds" tied up in Europe. The Sheriff of Fractured Jaw opened in London in late October 1958, approximately two months prior to its U.S. release.