Capernaum (2018)

This is not for the feint of heart.  It is blisteringly clear on just how undervalued children are in many a society.  It is miserableness personified.  The movie is set in Lebanon, where the heartache of the underprivileged is on such interminable display that you feel the physical hurt.  Life holds no promise, no ability to escape one's cast, which the parents tell their volume of children on a daily level.  This is the best you can hope for they say cruelly and often, expecting the children to support them rather than vis-versa.
Zain, an undocumented 12 year old, is at the center of the film.   He is both a competent problem-solver and a perceptive observer.  Early in the film his eldest sister gets her period.  She doesn't understand it at all, but he sees that once she crosses over from child to woman that she will be sold.  He tries to hide it, he tries to stop it, and when he can't he runs away.  But it is out of the frying pan and into the fire.  He gets adopted by an illegal Ethiopian woman and her one year old boy.  When she gets picked up by immigration, Zaid is left to care for her child and himself, and things go about as well as you might expect.  In the end, Zain is pushed too far, and comes up with an unusual remedy to the problem that his parents brought him into.