I was curious to see this film having spent time in Bucharest several years ago. I never ventured onto the subway but did have occasion to go into the underground....which is necessary in many European cities since the streets are often quite wide and difficult to cross. This is particularly true in Bucharest where everything that the former dictator built-- the buildings, the roads, etc. all appear to be on steroids. Add to this the fact that so many of the nominated documentaries (and foreign films) are never properly distributed here --even in NYC..In any event, this is a very disturbing film; at times difficult to watch and as I recall the film makers received considerable criticism on their decision not to "interfere" with what was taking place --to allow the physical and mental abuse of the children by the older "leaders of the pack" and by the parents who also appear in the film as well as the lethal consumption of lead paint taken by the children to get them high and that clearly was contributing to their deteriation. It was stark, disturbing, very difficult to watch but incredible filmmaking , nonetheless.