From 1966 to 1969, Patricio Guzmán studied at the Official School of Cinema in Madrid. In the 1970's, he observes Salvadore Allende's government and produces and directs "La Batalla de Chile", a documentary trilogy on which he works with Chris Marker. The film that collects several major awards, is one of the basis of his work. Expatriated in Paris, he remains strongly attached to his country of origin and its history. He directs thus several documentaries about the 20th century Chile, focusing on two major political characters : Augusto Pinochet ("Le Cas Pinochet", 2001) and Salvador Allende (2004). He depicted too the struggle of the Catholic Church in defending Human Rights in "En nombre de Dios" (1987).