Los Motivos de Luz (Luz' Motive) is a 1985 Mexican drama film, directed by Felipe Cazals.

[1] The film stars Patricia Reyes Spíndola, as Luz, a woman accused of murdering her four children, after being accused by her husband (Alonso Echánove) and her mother-in-law (Ana Ofelia Murguía).

Los Motivos de Luz was written by Xavier Robles based on the real case of Elvia Luz Cruz.

[2] The Ariel Awards are awarded annually by the Mexican Academy of Film Arts and Sciences in Mexico.

Los Motivos de Luz received two awards out of seven nominations.