Which film, The Front Line or Secret Reunion, one of the highest grossing Korean films of 2010?
The Front Line (2011 film): The Front Line (; also known as "Battle of Highlands") is a 2011 South Korean war film directed by Jang Hoon, set during the 1953 ceasefire of the Korean War. Secret Reunion: Secret Reunion (; lit. Secret Reunion:  "Sworn Brothers" or "Blood Brothers") is a 2010 South Korean spy thriller film directed by Jang Hoon, and one of the highest grossing Korean films of 2010.
Secret Reunion