Oldboy is a 2003 South Korean neo-noir mystery thriller film (a loose adaptation of the Japanese manga of the same name) directed and co-written by Park Chan-wook.
“Oldboy,” which Park co-wrote with Hwang Jo-yun and Lim Joon-hyung, won the Grand Prix at the 2004 Cannes Film Festival, led by jury president Quentin Tarantino. The acclaimed film stars Choi Min-sik as Oh Dae-Su, a man who was kidnapped and imprisoned for 15 years. After he’s released, he has five days to find his captor. Yoo Ji-tae and Kang Hye-jung co-star in the film.