Wily Child (2005)

A young neglected hill tribe kid, Sieng, is forced to leave his tribal home to enroll into an international school, it became the start of a new world with foreign friends, mischievous plans and clever plots. Sieng must deal with international group of wily kids, a cunning dim-witted teacher and a handful of kidnappers. Sieng comes to realize that life on the outside is filled with undreamed of adventures and excitement never known before.

Unfortunately the movie Wily Child is not yet available on HBO Max.