Filmmaker Pamela Yates finds out she got a scene in her film When the Mountains Tremble wrong, and returns to Guatemala to investigate. Read and watch in English and Spanish.

POV now has four great feature-length documentaries streaming for free on its website: Scout's Honor, Granito: How to Nail a Dictator, When the Mountains Tremble, and A Perfect Candidate.

Pamela Yates, director of Granito: How to Nail a Dictator, describes the way that her film was used as evidence to bring General Efraín Ríos Montt to trial for genocide in Guatemala.

Tonight, Granito: How to Nail a Dictator airs on POV. Read what the critics have to say about this gripping film.

POV's 25th season of independent nonfiction on PBS continues with a film about how Pamela Yates’ 1983 documentary, When the Mountains Tremble, provided key evidence for a stunning milestone for justice.