Luka (2016)

A custody battle goes awry for mother Lile when her son is sent to live with her mother-in-law, Nina. Time passes and Lile eventually hears that her son, Luka, has been killed in the Georgian-Abkhazian conflict. It's now 1993 and the war is drawing to an end. Lile travels back to the village where Luka was raised to collect his body for burial.

Unfortunately the movie Luka is not yet available on HBO Max.