Question: What genre is Jang Hoon's fourth film?

Context articles: Jang Hoon
A Taxi Driver
Arirang (2011 film)
Live at the Palace
Once Upon a Time in China V
Secret Reunion
Rough Cut (2008 film)
The Front Line (2011 film)
Kim Ki-duk
Ko Chang-seok

Jang Hoon (born May 4, 1975) is a South Korean film director.
 He directed the films "Rough Cut" (2008), "Secret Reunion" (2010), "The Front Line" (2011), and "A Taxi Driver" (2017).
A Taxi Driver () is a 2017 South Korean historical action drama film directed by Jang Hoon, with Song Kang-ho starring in the title role, alongside Thomas Kretschmann.
 The film was released on August 2, 2017 in South Korea.
 It was selected as the South Korean entry for the Best Foreign Language Film at the 90th Academy Awards.
Arirang (Korean: 아리랑 ) is a 2011 South Korean documentary film by Kim Ki-duk.
 The film addresses a personal crisis Kim went through, sparked by an incident during the filming of his previous film, "Dream", where the lead actress nearly died by hanging, and by the departure of a couple of close colleagues, including the director Jang Hoon.
 The title comes from a Korean folk song with the same title.
 In a heavily line-broken text released about the film, Kim writes that "Through "Arirang" I understand human beings, thank the nature, and accept my life as it is now."
 Kim produced the film entirely on his own.
 It premiered in the Un Certain Regard section of the 2011 Cannes Film Festival, and won the top award for best film.
Live at the Palace is a live album recorded at The Palace in Hollywood on October 11, 1995 by the band Blind Melon.
 It is the fourth posthumous album featuring vocals from former Blind Melon frontman Shannon Hoon, recorded ten days before Hoon's passing.
Once Upon a Time in China V is a 1994 Hong Kong martial arts action film written and directed by Tsui Hark.
 The film is the fifth installment in the "Once Upon a Time in China" film series, with Vincent Zhao reprising his role as Chinese folk hero Wong Fei-hung, since taking over the character from Jet Li in "Once Upon a Time in China IV".
 The film also saw the return of Hark as director (he only co-wrote and produced the fourth film) and of Rosamund Kwan as "13th Aunt", who was absent in the fourth film.
Secret Reunion (; lit.
 "Sworn Brothers" or "Blood Brothers") is a 2010 South Korean spy thriller film directed by Jang Hoon, and one of the highest grossing Korean films of 2010.
Rough Cut (; lit.
 "A Movie is a Movie") is a 2008 South Korean action crime film.
 It is the debut feature of director Jang Hoon and based on an original story by Kim Ki-duk.
 The film had a total of 1,307,688 admissions nationwide.
The Front Line (; also known as "Battle of Highlands") is a 2011 South Korean war film directed by Jang Hoon, set during the 1953 ceasefire of the Korean War.
 This is the third film by director Jang Hoon, after completing "Secret Reunion" and "Rough Cut".
 It was selected as South Korea's submission to the 84th Academy Awards for Best Foreign Language Film, but did not make the final shortlist.
 It also won four Grand Bell Awards, including Best Film.
Kim Ki-duk ( ] ; born December 20, 1960) is a South Korean filmmaker noted for his idiosyncratic art-house cinematic works.
 His films have received many distinctions in the festival circuit, making him one of the most important contemporary Asian film directors.
 Major festival awards include Golden Lion at 69th Venice International Film Festival for "Pietà", Silver Lion for Best Director at 61st Venice International Film Festival for "3-Iron", Silver bear for Best Director at 54th Berlin International Film Festival for "Samaria" and Un Certain Regard prize at 2011 Cannes Film Festival for Arirang.
 His most widely known feature is "Spring, Summer, Fall, Winter... and Spring" (2003), included in film critic Roger Ebert's Great Movies.
 Two of his films served as official submissions for Academy award for best foreign language film as South Korean entries.
 He has given scripts to several of his former assistant directors including Juhn Jai-hong ("Beautiful" and "Poongsan") and Jang Hoon ("Rough Cut").
Ko Chang-seok (born October 13, 1970) is a South Korean actor.
 Ko began his career on stage, performing in plays and musicals for many years before moving on to bit parts in films.
 He once earned his living by working on farms and in iron foundries, then acquired fame through his scene-stealing roles in Jang Hoon's films, notably as the movie director in "Rough Cut" (2008), and the Vietnamese gang boss in "Secret Reunion" (2010).
 He has since become one of the busiest supporting actors in Korean cinema.