Question: Kim Hak-soon (born 1954) is a South Korean film director and screenwriter, Kim wrote and directed which naval thriller film, Northern Limit Line, a  South Korean naval thriller film written and directed by Kim Hak-soon, based on the real-life events of the Second Battle of Yeonpyeong, released in what year?
Sentence (from "Northern Limit Line (film)"): Northern Limit Line () 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.
Relevant evidence: Yes