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A New York Times article about this film states: "After starting The Witness Chair, Miss Harding declared she was not satisfied with the script and would not continue. Briskin reminded her that the story had been purchased at her request and that she had approved the shooting script." The article also noted that in order to force Harding to finish the film, RKO threatened to sue her for the money already spent on the production, a total of $80,000. The Witness Chair was the last film of Harding's RKO contract. She did not make another film at the studio for many years. Hollywood Reporter production charts add Louise Latimer, George Offerman, Jr., Harry Bowen, Alan Curtis and Tony Martin to the cast, but their participation in the final film has not been confirmed.