Question: Who wrote the movie which Jung Ryeo-won played in 
Context: Ja Myung Go (; also known as Princess Ja-myung) is a 2009 South Korean television series starring Jung Ryeo-won, Park Min-young and Jung Kyung-ho.  It aired on SBS from March 9 to July 21, 2009 on Mondays and Tuesdays at 21:55 (KST) for 39 episodes. In Love and War (; lit.  "Sleeping with the Enemy") is a 2011 South Korean comedy/drama/romance film starring Kim Joo-hyuk and Jung Ryeo-won.  In June 1950, soon after the Korean War breaks out, a troop of North Korean soldiers enter a small South Korean village.  The troop captain proclaims that they came to liberate the villagers but their true agenda is to ferret out the reactionaries.  The villagers offer them heartfelt hospitality and cooperation to avoid falling out of the army's favor.  Eventually genuinely strong and close friendship starts to build up between the soldiers and the villagers. Bubble Gum () is a South Korean television series starring Lee Dong-wook, Jung Ryeo-won, Lee Jong-hyuk and Park Hee-von.  It airs on tvN on Mondays and Tuesdays at 23:00 beginning October 26, 2015. Castaway on the Moon (; lit.  "Mr Kim's drifting experience": 표류: drifting; hanja: 漂流記) is a 2009 South Korean romantic comedy film written and directed by Lee Hae-jun.  It is a love story between a suicidal man turned castaway on Bamseom in the Han River and an agoraphobic woman who is addicted to Cyworld. Witch's Court (Hangul: 마녀의 법정 ; RR: "Manyeoeui Beobjeong " ) is an upcoming South Korean television series starring Jung Ryeo-won and Yoon Hyun-min.  It is set to air on KBS2 in October 2017 on Mondays and Tuesdays at 22:00 (KST) time slot. My Lovely Sam-soon (; lit.  My Name Is Kim Sam-soon) is a South Korean television series based on the internet novel of the same title by Ji Soo-hyun, which was published on March 9, 2004.  Touted as the Korean version of "Bridget Jones's Diary", it starred Kim Sun-a (who gained 15 pounds for the role), Hyun Bin, Jung Ryeo-won and Daniel Henney.  The series aired on MBC from June 1 to July 21, 2005 on Wednesdays and Thursdays at 21:55 for 16 episodes. Never Ending Story () is a 2012 South Korean romantic comedy film directed by Jung Yong-joo.  Uhm Tae-woong and Jung Ryeo-won star as a mismatched couple who meet at a hospital where they have both been diagnosed with terminal illnesses and decide to spend the rest of their lives together. Jung Ryeo-won (born January 21, 1981) is a Korean-Australian actress.  She began her entertainment career as a singer in the now-defunct girl group Chakra, and first rose to fame in the hit television series "My Name Is Kim Sam-soon".  She is also known for her roles in "Two Faces of My Girlfriend", "Castaway on the Moon", and "History of a Salaryman". History of a Salaryman (; lit.  "Salaryman Cho Han Ji") is a 2012 South Korean television series that aired on SBS from January 2 to March 31, 2012 on Mondays and Tuesdays at 21:55 for 22 episodes.  Starring Lee Beom-soo, Jung Ryeo-won, Jung Gyu-woon, Hong Soo-hyun, Lee Deok-hwa, and Kim Seo-hyung, the series is a quirky comedy and murder mystery about an ordinary salaryman who finds himself involved with corporate spies and rival pharmaceutical companies.  It satirizes the historical events during China's Chu–Han Contention (206-202 B.C.) to become a parody of modern office politics. The 2012 SBS Drama Awards () is a ceremony honoring the best performances in television on the SBS network for the year 2012.  It took place on December 31, 2012, at the SBS Prism Tower in Sangam-dong, Mapo District, Seoul, and was hosted by actor Lee Dong-wook and actress Jung Ryeo-won.
Answer: Lee Hae-jun.