Ha Ha Ha is a 2010 South Korean film directed by Hong Sang-soo. The movie follows two friends, Jo Moon-kyung and Bang Joong-sik, who meet up for drinks in Seoul. They agree to swap stories about their recent trips to the small seaside town of Tongyeong.
As they recount their memories in flashback, it becomes apparent that they were in Tongyeong at the same time and with the same people. Jo Moon-kyung, a successful film director, meets and falls for a young woman named Kyeong-jin. Meanwhile, Bang Joong-sik, a film critic, has an affair with his old flame, Moon-sook.
Through their stories, the film explores themes of love, friendship, and the complications that come with those relationships. The nonlinear storytelling structure, with overlapping and contradictory events, adds an element of mystery and intrigue to the film.
Ha Ha Ha received critical acclaim at the Cannes Film Festival, where it won the Un Certain Regard award. The film is known for its clever writing, sharp dialogue, and nuanced performances by its cast.