Korean classic movie recommendations: "Train to Busan", "Sunshine Sisters", "Honey, Don't Cross That River", "So Won", "The Gift of Room No. 7", "New World", "Joint Security Area", "Highland Warfare", "I Want Revenge", "Untouchable Lovers", "War with Crime", "Happy Ghost", "Chaser", etc. 
JSA is a drama film directed by Park Chan-wook, written by Kim Hyun Seok and Lee Moo-young, starring Lee Young-ae, Lee Byung-hun, Song Kang-ho, Kim Tae-woo, Shin Ha-kyun, etc., and was released in South Korea on September 9, 2000. The film is set in the context of the relationship between the North and the South of the Korean Peninsula, and tells the story of the North Korean soldier (played by Shin Ha-kyun) who was killed by an unknown bullet at the outpost, triggering a series of confusing stories of the inside story surfaced.
Happy Ghost Upper Body ( is a comedy film directed and written by Kim Young-joo and starring Cha Tae-hyun, Ko Chang-seok, Jang Young-nam, etc., released in South Korea on December 22, 2010 and Chinese mainland on November 29, 2011. The film tells the comedic story of Sang-wan (played by Cha Tae-hyun), who seeks death due to loneliness, and ushers in the most glorious moment of his life after making a ridiculous wish to a group of grinning ghosts.
Untouchable Lovers" is a fantasy romance movie directed by Lee Hyun-seung, written by Kim Eun-jung and Yu Ji-na, starring Jun Ji-hyun, Lee Jung-jae, Choi Yoon-young, and Kim Mo-sang, which was released in South Korea on September 9, 2000. The film tells the story of the heroes and heroines Han Sung-hyun (played by Lee Jung-jae) and Kim Eun-joo (played by Jun Ji-hyun), who live in the same house in two periods, and communicate with each other through a mysterious mailbox.