Question: Leesong Hee-il, is a South Korean film director whose directorial debut film "No Regret", released in what year, is regarded as "the first real Korean gay feature."?

Context paragraphs:
Night Flight (2014 film): Night Flight () is a 2014 South Korean drama film written, directed and edited by Leesong Hee-il.  It made its world premiere in the Panorama section of the 64th Berlin International Film Festival on February 7, 2014, and was released in theaters in South Korea on August 28, 2014.

Peter Ramsey: Peter A. Ramsey (born 1962/1963) is an American film director, illustrator and storyboard artist, whose directorial debut was "Rise of the Guardians" in 2012.

Mohamed Diab: Mohamed Diab is a writer and director whose work often centers on pressing issues concerning Egyptian society.  He is known for his directorial debut film "Cairo 678" "(Les Femmes du bus 678)", which was released a month before the Egyptian revolution and was described by the New York Times as "unmistakably a harbinger of that revolution."  Paulo Coehlo tweeted about the film calling it "brilliant" and saying "it should be mandatory for men, regardless of their religion/culture, to watch it".

Leesong Hee-il: Leesong Hee-il (; born 1971) is a South Korean film director whose first feature film "No Regret" is regarded as "the first real Korean gay feature."  The film won him Best Independent Film Director at the 2006 Director's Cut Awards.  Leesong is openly gay.

July Jung: Jung Joo-ri (born 1980), also known as July Jung, is a South Korean film director and screenwriter.  Jung's directorial debut feature "A Girl at My Door" won the Best First Film at the 25th Stockholm International Film Festival.  She also won the Best New Director at the 23rd Buil Film Awards and Best Director/Screenwriter at the 15th Women in Film Korea Awards in 2014, and Best Screenplay at the 2nd Wildflower Film Awards and Best New Director for film at the 51st Baeksang Arts Awards in 2015.

Han Joo-wan: Han Joo-wan (born January 10, 1984) is a South Korean actor.  He began his acting career in indie short films such as Leesong Hee-il's queer "Suddenly, Last Summer" and Lee Sang-woo's "Exit" (the latter from Jeonju International Film Festival's annual "Short!  Short!  Short!"  omnibus project).  Han rose to mainstream popularity in 2013 in the highly rated ensemble TV drama "Wang's Family", which led to him being cast in 2014 period drama "Gunman in Joseon".

Lee Yi-kyung: Lee Yi-kyung (born January 8, 1989) is a South Korean actor.  He made his acting debut in 2011, and first played minor and supporting roles in television dramas such as "My Love from the Star" (2013).  Lee has also appeared in both independent and commercial films, notably Leesong Hee-il's "White Night" (2012) and Kim Ki-duk's "One on One" (2014).

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".

Cho Geun-hyun: Cho Geun-hyun is a South Korean art director and film director.  Cho is an award-winning art director before he switched to directing.  His directorial debut, the hit drama thriller "26 Years" (2012) with over 2.9 millions admissions, was voted Best Korean Film by Twitter users held by KOFIC in December 2012.  He was internationally recognized for his second feature "Late Spring" (2014), which won a total of six awards, including Best Foreign Feature at the 23rd Arizona International Film Festival, Best Film at the 14th Milan International Film Festival Awards and Best Asian Narrative Film at the 13th Asian Film Festival of Dallas in 2014.

No Regret (film): No Regret () is a 2006 South Korean film and the feature film directorial debut of Leesong Hee-il, based on his earlier short "Good Romance".  "No Regret" is also regarded as "the first 'real' Korean gay feature", (although earlier South Korean films, such as "Road Movie", released in 2002, have dealt with gay relationships), and is also the first South Korean feature to be directed by an openly gay Korean filmmaker.

Supporting paragraphs: Leesong Hee-il No Regret (film)
Answer: 2006