Kundo: Age of the Rampant is a 2014 South Korean period action film starring Ha Jung-woo and Gang Dong-won, and directed by Yoon Jong-bin. Set in mid-19th century Joseon, it is about a power struggle between the unjust wealthy noblemen who run society and a group of righteous outlaws who steal from corrupt officials to give to the downtrodden and starving.

Kim Sung-hoon, better known as Ha Jung-woo (Korean: 하정우), is a South Korean actor, film director, screenwriter and film producer. One of the highest grossing actors in South Korea, Ha's starring films have accumulated more than 100 million tickets. Only 3 other actors have reached this milestone, with Ha being nearly a decade younger than the rest when achieving this.