Secret Reunion (Korean: 의형제; Hanja: 義兄弟; RR: Uihyeongje; lit. "Sworn Brothers" or "Blood Brothers") is a 2010 South Korean action film directed by Jang Hoon, and one of the highest grossing Korean films of 2010. This is the second film by director Jang Hoon, who completed Rough Cut two years prior.