Question: Kim Sang-kyung (born June 1, 1972) is a South Korean actor, he's  best known for his leading roles in which South Korean film, released in 2007?

Context paragraphs:
Kim Sang-kyung: Kim Sang-kyung (born June 1, 1972) is a South Korean actor.  He is best known for his leading roles in "Memories of Murder" (2003) and "May 18" (2007).  Two of his films directed by Hong Sang-soo, "Tale of Cinema" (2005) and "Ha Ha Ha" (2010), screened at the Cannes Film Festival.  Kim has also starred in numerous television dramas, notably the period epic "King Sejong the Great" (2008) and the family comedy "What's With This Family" (2014).

Park Hae-il: Park Hae-il (born January 26, 1977) is a South Korean actor.  He began his acting career in theater, but soon gained the film industry's attention in 2003 with "Jealousy Is My Middle Name" and "Memories of Murder".  Park's film career took off, with leading roles in films of diverse genres, including relationship drama "Rules of Dating" (2005), horror mystery "Paradise Murdered" (2007), and crime thriller "Moss" (2010).  More recently, Park received Best Actor honors for his performance in the period action film "War of the Arrows", which was the highest-grossing Korean film of 2011.  He also received critical acclaim for his role as an aging poet in "A Muse" (2012).

The Tower (2012 South Korean film): The Tower (; "Tower") is a 2012 South Korean disaster thriller film about a fire that breaks out in a luxury skyscraper in central Seoul on Christmas Eve.  The film is directed by Kim Ji-hoon, and stars Sol Kyung-gu, Kim Sang-kyung and Son Ye-jin in the lead roles.  It was released in theaters on Christmas Day, December 25, 2012.

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".

Montage (2013 film): Montage () is a 2013 South Korean thriller film starring Uhm Jung-hwa, Kim Sang-kyung, and Song Young-chang.  The movie was officially remade in Hindi as "Te3n" in 2016.

King Sejong the Great (TV series): King Sejong the Great () is a 2008 South Korean historical television series depicting the life of the fourth king of Joseon, Sejong the Great (played by Kim Sang-kyung).  Considered one of the greatest kings in Korean history, Sejong created Hangul, the Korean alphabet.  The series aired on Korean Broadcasting System from January 5 to December 7, 2008 on Saturdays and Sundays at 21:30 for 86 episodes.  Episodes 1 to 26 aired on KBS1, and episodes 27 to 86 aired on KBS2.

Kim Myung-min: Kim Myung-min (, born 8 October 1972) is a South Korean actor.  He is best known for his leading roles in the television series "Immortal Admiral Yi Sun-shin" (2004), "White Tower" (2007), "Beethoven Virus" (2008), and "Six Flying Dragons" (2015-2016), as well as the films "Closer to Heaven" (2009), " (2011) and "" (2015).

May 18 (film): May 18 (; lit.  "Splendid Holiday") is a South Korean film released in 2007.

Memories of Murder: Memories of Murder () is a 2003 South Korean crime-drama film co-written and directed by Bong Joon-ho.  It is based on the true story of Korea's first serial murders in history, which took place between 1986 and 1991 in Hwaseong, Gyeonggi Province.  Song Kang-ho and Kim Sang-kyung star as Detective Park and Detective Seo, respectively, two of the detectives trying to solve the crimes.

The Discloser: The Discloser is a 2017 South Korean drama film directed by Hong Ki-seon.  The film stars Kim Sang-kyung, Kim Ok-bin, Choi Moo-sung and Choi Guy-hwa.

Supporting paragraphs: Kim Sang-kyung May 18 (film)
Answer: May 18