Tears of the Black Tiger (Thai: ฟ้าทะลายโจร, or Fa Thalai Chon, literally, "the heavens strike the thief") is a 2000 Thai western film written and directed by Wisit Sasanatieng. The story of a tragic romance between Dum, a fatalistic, working-class hero, who has become an outlaw, and Rumpoey, the upper-class daughter of a provincial governor, it is equal parts homage to and parody of Thai action films and romantic melodramas of the 1950s and 1960s. Wikipedia
Mahesuan: By everything sacred in this world, I, Mahesuan, swear, with the Buddha as my witness, I'll always be true and loyal to my blood brother, Dom, the Black Tiger who saved my life. If I break this oath, may his gun take my life.