Which South Korean film director won the Palme d'Or at the Cannes Film Festival for his film "Oldboy"?

Answer: Park Chan-wook
Detail: Park Chan-wook is a highly acclaimed South Korean film director known for his distinct visual style, intricate storytelling, and provocative themes. He gained international recognition with his film “Oldboy,” the second installment in his Vengeance Trilogy, which won the Grand Prix at the Cannes Film Festival in 2004. “Oldboy” is a dark and violent psychological thriller that follows the story of a man who seeks revenge after being inexplicably imprisoned for 15 years. Park’s masterful direction, along with its stunning cinematography and intense performances, earned the film critical acclaim and a cult following worldwide.