Question: Kim Ki-duk's most widely known feature came out in which year ?

Context paragraphs:
Kim Ki-duk: 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").

Arirang (2011 film): 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.

Rough Cut (2008 film): 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.

Kim Ki-duk (director, born 1934): Kim Ki-duk (29 September 1934 – 7 September 2017) was a South Korean film director and professor.  Best known outside of Korea for his 1967 giant monster film "", Kim Ki-duk directed 66 movies in total from his directorial debut in 1961 until his retirement from the film industry in 1977.  Along with Kim Soo-yong and Lee Man-hee, Kim was one of the leading young directors of the Korean cinematic wave of the 1960s.  The most distinctive and successful genre of this period was the melodrama (청춘영화 - "cheongchun yeonghwa").  He is not related to Kim Ki-duk, the South Korean director of "3-Iron".

Bang Eun-jin: Bang Eun-jin (born August 5, 1965) is a South Korean actress and film director.  She is best known for starring in Park Chul-soo's "301, 302" and Kim Ki-duk's "Address Unknown".  Bang made her feature directorial debut with "Princess Aurora" in 2005, and has since directed "Perfect Number" (2012), and "Way Back Home" (2013).

Breath (2007 film): Breath (숨, "Soom") is the fourteenth feature film by South Korean director Kim Ki-duk.

Pietà (film): Pietà () is a 2012 South Korean film.  The 18th feature written and directed by Kim Ki-duk, it depicts the mysterious relationship between a brutal man who works for loan sharks and a middle-aged woman who claims that she is his mother, mixing Christian symbolism and highly sexual content.

Time (2006 film): Time is the thirteenth feature film by South Korean director Kim Ki-duk.  It premiered at the Karlovy Vary International Film Festival on June 30, 2006.

Beautiful (2008 film): Beautiful () is a 2008 South Korean film, and the debut feature of director Juhn Jai-hong.  The film is based on an original story by Kim Ki-duk.

Spring, Summer, Fall, Winter... and Spring: Spring, Summer, Fall, Winter... and Spring (also known as Spring, Summer, Autumn, Winter... and Spring) is a 2003 South Korean film directed by Kim Ki-duk about a Buddhist monastery that floats on a lake in a pristine forest.  The story is about the life of a Buddhist monk as he passes through the seasons of his life, from childhood to old age.

Supporting paragraphs: Kim Ki-duk Spring, Summer, Fall, Winter... and Spring
Answer: 2003