Park Hoon-jung is a South Korean film director and screenwriter. Park first gained recognition in the Korean film industry for his screenwriting, having written the screenplays for directors Kim Jee-woon's I Saw the Devil (2010) and Ryoo Seung-wan's The Unjust (2010). In 2011, he made his directorial debut with the period film The Showdown, and his second film, the gangster epic New World (2013), was a critical and commercial success.

Kim Jee-woon is a South Korean film director, screenwriter, and producer. He was a theater actor and director before debuting with his self-written and directed film, The Quiet Family in 1998. Kim has worked with increasing levels of success in cinema, showing accomplished acting and a detailed stylization in his films. He is currently one of the most recognized screenwriters/directors in the Korean film industry.