Secret Reunion

Secret Reunion (Korean: 의형제; RR: Uihyeongje; lit. 'Sworn Brothers; Blood Brothers') is a 2010 South Korean action film directed by Jang Hoon, and one of the highest grossing Korean films of 2010. It follows a former National Intelligence Service (NIS) agent (Song Kang-ho) and a North Korean sleeper operative (Gang Dong-won) who, years after a failed assassination, unexpectedly reunite and form an unlikely bond.

This is the second film by director Jang Hoon, who completed Rough Cut two years prior.