If you loved Duelist, try Gagman
A bridge between a film you've already seen and one most people haven't. Gagman has roughly 5.5× fewer votes than Duelist — 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 Lee Myung-se. If that's the register that drew you to Duelist, the second film will land in a comparable space — through a different lens.
What Gagman is
Here's a film about show business. A delusional, struggling comedian wants to direct movies. This leads to various shenanigans. It is what it is.
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