어느 여배우의 고백(1967) / Confession of an Actress ( Eoneu Yeobaeu-ui Gobaek )

A washed-up actor runs into an old colleague on a film set and learns the daughter he believed died with her mother in childbirth is alive and working in a bar, so he quietly gets her cast in pictures without telling her who he is. He coaches her by letter as she becomes a star, and their eventual on-screen pairing as father and daughter lands closer to the truth than either of them can afford.

Why it's free: Free on the Korean Film Archive's own channel; the national archive holds the rights to the restorations it publishes.