Combine: child soldiers fighting for who-knows-what in the mountains and jungles of an unnamed Latin America country (but note that the director, Alejandro Landes, is Colombian, and this film will be Colombia’s Oscar entry); an American woman who they are holding hostage; very few adult;, and a haunting score, and you get a fascinating and disturbing version of Lord of the Flies. The power struggles, the child-like innocence that is glimpsed but not sustained, and the creation of rituals to stave off feelings of estrangement from the world, all feel natural and appropriate to the story.  Not for sensitive viewers.  (Subtitles.)

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