"Granito: How to Nail a Dictator" tells how Pamela Yates' 1983 documentary "When the Mountains Tremble," about the 1982 genocide of indigenous Mayans by the Guatemalan military, was used to hold ex-dictator Efraín Ríos Montt responsible. "Granito" also features individuals who appeared in the 1983 film, including storyteller Rigoberta Menchú, who would go on to win the 1992 Nobel Peace Prize; and former guerrilla commander Gustavo Meoño.

Source: PBS