- Country: South Korea
- Genres: Drama, Short
- Release: 2009-08-14
- Director: Hong Sang-soo
- Writers: Hong Sang-soo
- Language: Korean
- Stars: Jung Yu-mi
- Runtime: 31 min
- Awards: N/A
- AKA: Lost in the Mountains (United States of America) , Perdida en las montañas (Spain) , Lost in the Mountains (United Kingdom) , Cheopcheopsanjung (Korea) , Cheopcheopsanjung , Lost in the Mountains
- Plot:
Hong Sang-soo’s Lost in the Mountains depicts Misook’s suffering when she discovers her friend Jin-Young has been secretly sleeping with her lover.
- IMDB:tt1487946