From Wikipedia
Children Underground (2001) is a documentary film directed by Edet Belzberg.
Homeless children are the casualties of Romania's recent history. In
an effort to increase the nation's work force, former communist leader
Nicolae Ceausescu outlawed contraception and abortion. Thousands of
unwanted children were placed in state orphanages, where they faced
terrible conditions. With the fall of Communism, many children moved
onto the streets. Some were from the orphanages. Others were runways
from impoverished families. Today there are 20,000 children living on
the streets. The resources for sheltering these homeless youths are
severely limited.
Children Underground follows the story of five street children, aged eight to sixteen who live in a subway station in Bucharest, Romania.
The street kids are encountered daily by commuting adults, who pass
them by in the station as they starve, swindle, and steal, all while
searching desperately for a fresh can of paint to get high with.