Entre la razón y la locura

The making of the film led to a legal battle between star Mel Gibson and Voltage Pictures, because the latter wouldn't allow Gibson and original director Farhad Safinia to film scenes on location in Oxford, England. Because the film was already over budget and behind schedule, Voltage forced them to use Trinity College in Ireland as a substitute. Gibson and Safinia eventually left the project, with a new director and a new screenwriter (Todd Komarnicki) taking over. Gibson and his production company Icon Productions went to court to prevent the movie from being released, claiming that they were not allowed to finish the movie, but were unsuccessful. Gibson refused to promote the film afterwards.

James Murray makes reference to crosswords puzzles; they were not created until 1913.

Black and white photographs of the real-life Dr. William Chester Minor with the dictionary on his lap, and also Sir James A. H. Murray and his Dictionary staff were shown after the epilogue and before end credits.

Referenced in Vecherniy Urgant: Artem Dzyaba/Zivert (2019)