Northern Limit Line (Hangul: 연평해전; RR: Yeonpyeong Haejeon; lit. Battle of Yeonpyeong) is a 2015 South Korean naval thriller film written and directed by Kim Hak-soon, based on the real-life events of the Second Battle of Yeonpyeong. It stars Kim Mu-yeol, Jin Goo, and Lee Hyun-woo.
In June 2002, while South Korea is caught in sporting frenzy as the national soccer team plays against Turkey for third place in the 2002 FIFA World Cup, the North Korean navy deploys two of their patrol boats towards the Northern Limit Line, a disputed maritime border near Yeonpyeong Island in the Yellow Sea. While carrying out its usual duties, South Korean patrol boat 357 suddenly finds itself under surprise attack.
Source Page – Wikipedia