The Official Story
The synposis from IMDB:
Alicia Marnet de Ibañez is happily married to her husband Roberto. They have an adopted daughter named Gaby. Alicia is blissfully ignorant about what happened in the military coup until one of her history students asks her if she only believes what the history books say. She embarks on a mission to find if her daughter is the daughter of one of the women who disappeared during the coup. When her husband finds out, he does everything in his power to prevent her from finding the truth, but she's determined and nothing he does is going to stop her.