For her role of Eva, actress Natalia Oreiro studied German language for two months prior to shooting. More than half of her dialogs are in fact in German.
Lucía Puenzo wrote the book that the movie is based on, she also wrote the screenplay, produced and directed the movie.
Official submission of Argentina for the 'Best Foreign Language Film' category of the 86th Academy Awards in 2014.
Director Lucía Puenzo decided to cast actress Natalia Oreiro into leading role after seeing her performance in Clandestine Childhood (2011).
In reality, the death of Nora Eldoc had nothing to do with Josef Mengele, not was her association with Mossad as strong as the film suggests. Misinformation and sensationalism from media outlets led the public to believe that she had been murdered by Nazis, when it is far more likely she simply fell off a mountain.