It's surprising that Revenant (Resurrection Man) received 20 billion KRW in investment

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Of course, Witch 2, a pioneer in this field, managed to make a film with a budget of around 9 billion KRW back in 2020.
Considering inflation and the fact that they could recruit actors cheaply due to COVID-19 at that time,
if we exaggerate a little, you could say the production costs were similar to Witch 2. (Of course, no matter how you look at it, it's true that Witch 2 was done on a budget.)
However, the pool of actors available for Revenant and Witch 2 is incomparable, and they had to carry the whole thing with just Koo Kyo-hwan, all while working in a genre that barely works in Korea.
Comparing it to the cast in Witch 2, I'm genuinely curious what those investing 20 billion KRW were thinking.
Was it just "We can sell this all overseas!"?
Or did the government provide the investment?
Looking at movie production costs, there are so many things that are truly baffling. It's not just a problem with Revenant.
The production costs are nonsensical,
and it's truly amazing that there are places willing to invest that much.
They wouldn't have just invested blindly,
since it's all money coming out of their own pockets..
Even if a movie is a massive hit, it's hard to hit 4 million admissions,
so I wonder if it even makes sense to invest 20 billion KRW with a break-even point of 4 million...