, released internationally as Northern Limit Line , is a 2015 South Korean war film directed by Kim Hak-sun. It depicts the real-life Second Battle of Yeonpyeong , a naval skirmish between North and South Korean patrol boats that occurred on June 29, 2002. Historical Context
The film spends its first half developing the camaraderie and personal lives of the crew on the Chamsuri 357 before transitioning into a visceral, real-time depiction of the battle. Key figures include:
While most of South Korea was swept up in the excitement of co-hosting the , a deadly naval clash broke out near the Northern Limit Line (NLL), the maritime border in the Yellow Sea. Two North Korean patrol boats crossed the line and launched a surprise attack on South Korean vessels, specifically targeting the gunboat Chamsuri 357 . Plot and Characters
The strict but dedicated commander of the vessel.
After facing funding difficulties when original investors backed out, the film was completed largely through crowdfunding from the South Korean public, who viewed the subject as a patriotic tribute.
The film became a major commercial success in South Korea, resonating deeply with audiences for its emotional portrayal of the young sailors' sacrifices.
Director Kim Hak-sun utilized 3D technology (supported by a grant from the SK Arts Council) to create an immersive experience of the chaotic maritime combat.
