New World () is a 2013 South Korean crime drama film written and directed by Park Hoon-jung.
 Starring Choi Min-sik, Hwang Jung-min and Lee Jung-jae, the film shows the conflict between the police and the mob through the eyes of an undercover cop.
 "New World" is the first entry in a planned trilogy.
The Last Witness () is a 2001 South Korean thriller film directed by Bae Chang-ho and starring Lee Jung-jae, Ahn Sung-ki and Lee Mi-yeon.
 It is based on the novel of the same name by Kim Seong-jong, and is the second adaptation of the book, the first being in 1980.
Cornered is a 1945 film noir starring Dick Powell and directed by Edward Dmytryk.
 This is the second teaming of Powell and Dmytryk (after "Murder, My Sweet").
 Many scenes shot by cinematographer Harry J. Wild and Dmytryk stand out as classic film noir.
 The screenplay was written by John Paxton with uncredited help from Ben Hecht.
Born to Kill is a 1947 American film noir starring Lawrence Tierney and directed by Robert Wise.
 It was the first film noir to be directed by Wise, who later directed "The Set-Up" (1949), "The Captive City" (1952), and "Odds Against Tomorrow" (1959).
 The film also features Claire Trevor, Walter Slezak, and Elisha Cook Jr.
Air City () is a 2007 South Korean television drama starring Lee Jung-jae, Choi Ji-woo, Lee Jin-wook, and Moon Jung-hee.
 It aired on MBC from May 19 to June 8, 2007 on Saturdays and Sundays at 21:40 for 16 episodes.
 The drama revolves around the work and romance of four airport personnel, showing the inner workings of the airline industry.
Over the Rainbow () is a 2002 South Korean film starring Lee Jung-jae and Jang Jin-young.
The October Man is a 1947 mystery film/film noir starring John Mills and Joan Greenwood, written by novelist Eric Ambler, who also produced.
 A man is suspected of murder, and due to the lingering effects of a brain injury sustained in an earlier accident and after intense police investigation, he himself begins to doubt whether he is innocent or not.
Warriors of the Dawn (Hangul: 대립군; Hanja:代立軍; RR: "Daeripgun"; lit.
 Proxy Soldiers) is a 2017 South Korean historical film by Jeong Yoon-cheol set during the 1592 Imjin War, starring Lee Jung-jae and Yeo Jin-goo.
 The story follows a group of mercenaries tasked with protecting the newly crowned prince Gwanghae during a long and treacherous journey vital to the country’s future.
 The film was released on May 31, 2017.
Big Match () is a 2014 South Korean action-comedy film written and directed by Choi Ho, starring Lee Jung-jae, Shin Ha-kyun, Lee Sung-min and BoA.
Lee Jung-jae (born 15 March 1973) is a South Korean actor.
 He debuted as a fashion model, then began his acting career on television, notably in the campus series "Feelings" (1994) and the iconic drama "Sandglass" (1995).
 After his acting breakthrough in "An Affair" (1998), Lee's film career took off.
 He has starred in a variety of film genres, among them romantic films such as "Il Mare" (2000) and "Over the Rainbow" (2002), melodrama "Last Present" (2001), comedy "Oh!
 Brothers" (2003), action films "The Last Witness" (2001) and "Typhoon" (2005), heist film "The Thieves" (2012), film noir "New World" (2013), and period film "The Face Reader" (2013).
 He won Best Actor awards at the Blue Dragon Film Awards for "City of the Rising Sun" (1999), and at the Fantasporto Director's Week for "The Housemaid" (2010).

Question: What film noir starring Lee Jung-jae shows the conflict between the police and the mob?
Answer: New World