Christie Marston, the granddaughter of Elizabeth and William Marston, claims that Olive Byrne and Elizabeth had no romantic relationship. She says they were like sisters and "no love triangle ever even hinted at."
Even though the invention of the polygraph itself was credited to John Augustus Larson, William Moulton Marston was the inventor of one its components (a systolic blood pressure cuff).
Christie Marston, the granddaughter of Elizabeth and William Marston, opposed the movie partially because the director, Angela Robinson, supposedly never spoke directly to any family members and wanted to work with her own interpretation.
William Marston's granddaughter Christie Marston publicly stated that her family "completely rejects any claims made in the film and in no way support this work of fiction."