If you loved Oldboy, try Joint Security Area
A bridge between a film you've already seen and one most people haven't. Joint Security Area has roughly 11.9× fewer votes than Oldboy — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Park Chan-wook, and they sit in Action / Drama / Thriller territory. If that's the register that drew you to Oldboy, the second film will land in a comparable space — through a different lens.
What Joint Security Area is
Barbed wire fences on a snowy border, a gunshot echoes, a helmet lies abandoned. Two soldiers dead, investigators arrive. Park Chan-wook directs a tense tale of conflicting truths.

