Director Juan José Campanella was not happy with the English translation of the title. The original title was intentionally ambiguous, since the Spanish word "sus" could mean "their", but also "his" or "her".
Guillermo Francella (who is a very well known comedic actor in Argentina) had to shave a mustache he had worn for more than 20 years, at the request of director Juan José Campanella.
Pablo Rago, who plays Ricardo Morales, is the only Argentinian actor to play in both Argentinian Oscar winner movies: The Official Story (1985) and El secreto de sus ojos.
As of June 2010, this is the first Argentinian movie to reach the IMDb Top 250.
In 2010 it became the second Argentine film to win an Academy Award for Best Foreign Language Film. The previous one was The Official Story (1985).