Reunion (2002)

Chung, whose parents were murdered when he was ten, is now the adopted son of a Taiwanese Billionaire. Years later, Chung returns to Hong Kong to try and find his remaining family, but he soon discovers that his brother Chak is taken in by a triad member. The triad sends Chak to kidnap Chung to blackmail his family.

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