Nostalgia for the Light is a documentary about Atacama desert and the two activities that go on there: astronomers in ALMA space observatory examine the sky, and the relatives of murdered people dig the ground hoping to find their loved ones. The way the director compares these seemingly totally different topics (searching the sky and searching the sand) is pure poetry. It's a serious, but not depressing nor boring movie. All the interviewed people are amazingly relevant and have great insight. They made me feel like I want to get to know them personally. If you're looking for a detailed "for dummies" introduction about Chile, ALMA observatory or Pinochet's concentration camps, this movie is not for you. It's for viewers who want to learn to appreciate the beauty of life and history, and the surprising parallels they sometimes offer us.