Who directed a 2004 Korean horror film set in 1972 Vietnam, during the Vietnam War, that stars a South Korean actor known for his role in action films?
Son Byong-ho:  Son is known for his role in action films, notably, "R-Point" (2004), "Running Wild" (2006), "The Good, the Bad, the Weird" (2008) and Queen Insoo (2011).
i don't know