Few revenge movies are as visceral and upsetting as Park Chan-wook's "Oldboy." Adapted from the Japanese manga of the same name, the 2003 film centers on a South Korean businessman, Oh Dae-su (Choi Min-sik), who is imprisoned in a hotel room for 15 years without explanation. When he's finally set free, he seeks answers from his former captors, although he soon learns that some truths are best left hidden.
With its graphic violence and disturbing content, "Oldboy" was one of the forbearers of extreme Asian action and horror, and the film became famous for its single shot hallway fight sequence and shocking twist ending. Such was its impact that a string of imitators followed — including a 2013 reboot that felt almost like an insult to the original – yet only a handful of movies can match t