When Jeremy Irons was asked why he did Dungeons & Dragons (2000), he replied "Are you kidding? I'd just bought a castle, I had to pay for it somehow"
replies(2):
https://en.m.wikipedia.org/wiki/Kilcoe_Castle https://jeremyirons.net/kilcoe-castle/
It’s quite something. He bought it for IEP 150,000 (around €190,000) but likely spent an order of magnitude more restoring it.