Who directed the film in which Lee Min-ho starred in his first lead role ?
Lee Min-ho (actor, born 1987):  Lee starred in his first leading role in film with "Gangnam Blues" (2015), followed by his first China-produced film "Bounty Hunters" (2016). Gangnam Blues: Gangnam Blues (; lit. Gangnam Blues:  Gangnam 1970) is a 2015 South Korean noir action film written and directed by Yoo Ha, and starring Lee Min-ho and Kim Rae-won.
Yoo Ha