This is a must-see and one of the best documentaries - and films - of this year.
View MoreWhile it doesn't offer any answers, it both thrills and makes you think.
View MoreThe film never slows down or bores, plunging from one harrowing sequence to the next.
View MoreAll of these films share one commonality, that being a kind of emotional center that humanizes a cast of monsters.
View More