Wiktionary
hard labor
n. The forced servitude in the form of physically difficult labor, usually as a penal punishment.
Wikipedia
Hard Labor (film)
Hard Labor is 2011 Brazilian drama film directed by Juliana Rojas and Marco Dutra. It premiered in the Un Certain Regard section at the 2011 Cannes Film Festival. It was shot in São Paulo, Paulínia, and Campinas, all cities of the state of São Paulo.