The Sunshine Boy (2009)

A Mother's Courage (aka The Sunshine Boy) is a moving, compassionate portrayal of a mother's desperate quest to understand the perplexing condition that controls her son. A journey through different countries, where every stop-over opens a new path into the depths of autism - and places her son in a strikingly different perspective as it reaches the end.

Unfortunately the movie The Sunshine Boy is not yet available on HBO Max.