Claim: Lee Min-ho got his first lead role for a 2015 film.

Gangnam Blues -LRB- ; lit . Gangnam 1970 -RRB- is a 2015 South Korean noir action film written and directed by Yoo Ha , and starring Lee Min-ho and Kim Rae-won . The film is set in the 1970s against the backdrop of the real estate development of Seoul 's Gangnam district amidst socio-political turmoil and terrorism . The friendship of two childhood friends is tested as they find themselves entangled in the collusion and battles between political powers and criminal organizations .