Yup, the fact that rent isn’t mentioned says to me he owns his home. Which means he probably has other investments, and quite possibly a reliable investment manager. Given his lifestyle, I’m guessing nice stable conservative (in the original sense) investments.
Yup again. There’s a reason unsecured debt used to be called usury. That said, and I know you weren’t saying this, but Chow Yun-fat doesn’t appear to be a poverty tourist, just a genuinely humble and frugal person.