back story of 'an attitude of ordering wine without looking at price'
At part 3, Count Fujiwara said this line to Lady Hideko. It has a funny back story, which is famous among Korean fan of PCW.
While casting Ok-bin Kim in the lead role of Thirst, director Park had a dinner with her to have a conversation. He didn't pay a close attention to wine selection and later found out that he missed the last 0 at the price -- that wine cost $300 which was ten times expensive than he thought. At some press conference, he joked that he chose Ok-bin Kim because he spent too much for the wine.
I smiled when I heard this line in theater, as I'm well aware of this back story of wine ordering.