re potus/Bidan

https:// www.imdb.com/title/tt0889061/

From link:

"Summaries

(Korean with English subtitles) Man-su is a struggling film director. When he couldn't pay back his debts, he is pressured into staging an elaborate hoax on behalf of his loan shark's aging father in this engaging, often funny tale about fathers, sons, and one old man's wish to get back home.

—Anonymous"

since we're watching a movie