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 "The Admiral: Roaring Currents"): The film was released theatrically in South Korea on July 30, 2014.
Relevant evidence: No