

This biopic tells the true story of Korean boxer Kim Deuk-gu. Born into poverty, Kim used boxing to free himself from his bleak surroundings, eventually becoming the world's top lightweight. Tragically, Kim's life was cut short when he died from a blood clot in his brain during a championship fight with Ray Boom Boom Mancini.
Acting
Yu Oh-seong's transformation—body and soul obliterated.
Direction
Kwak Kyung-taek refuses to glorify the violence.
Cinematography
Grainy 80s Korea—grey, desperate, alive.

Director
Kwak Kyung-taek
Trivia, insights & behind the scenes
The real Mancini-Kim fight changed boxing forever—round limits were reduced from 15 to 12 after this tragedy.
Director Kwak cast Yu Oh-seong specifically because he'd never boxed—wanted raw desperation, not polished technique.