Question: What is the second film in the Vengeance Trilogy based on?
Sentence (from "Oldboy (2003 film)"): Oldboy (Hangul: 올드보이 ; RR: "Oldeuboi "; MR: "Oldŭboi " ) is a 2003 South Korean mystery thriller neo-noir film directed by Park Chan-wook.
Relevant evidence: No