A Hard Day (; lit.
 "Take It to the End") is a 2014 South Korean crime action thriller film written and directed by Kim Seong-hun, and starring Lee Sun-kyun and Cho Jin-woong.
 It was selected to compete in the Directors' Fortnight section of the 2014 Cannes Film Festival.
Bluebeard (, lit.
 "Thawing") is a 2017 South Korean psychological thriller film directed by Lee Soo-yeon.
 It stars Cho Jin-woong.
Cho Jin-woong (born Jo Won-joon on April 2, 1976) is a South Korean actor.
 He is best known for his roles as Sejong's loyal bodyguard in "Deep Rooted Tree" (2011), a mobster in "" (2012), and a mysterious villain in "A Hard Day" (2014).
 He also gained recognition and praise for his performance as a detective in the television series "Signal" (2016).
Perfect Number (; lit.
 Suspect X) is a 2012 South Korean mystery-drama film directed by Bang Eun-jin.
 Adapted from Keigo Higashino's novel "The Devotion of Suspect X", it centers around a mild-mannered mathematics teacher (Ryoo Seung-bum) who plans the perfect alibi for the woman he secretly loves (Lee Yo-won) when she unexpectedly murders her abusive ex-husband.
 Cho Jin-woong received a Best Supporting Actor nomination at the 49th Baeksang Arts Awards in 2013.
An Ethics Lesson (; lit.
 "The Ethics of Anger") is a 2013 South Korean film starring Lee Je-hoon, Cho Jin-woong, Kim Tae-hoon, Kwak Do-won and Moon So-ri.
 Written and directed by Park Myoung-rang, the crime thriller centers on four suspicious men involved in a college girl's murder.
The Handmaiden (;  "Lady" ) is a 2016 South Korean erotic psychological thriller film directed by Park Chan-wook and starring Kim Min-hee, Kim Tae-ri, Ha Jung-woo and Cho Jin-woong.
 It is inspired from the novel "Fingersmith" by Welsh writer Sarah Waters, with the setting changed from Victorian era Britain to Korea under Japanese colonial rule.
Beyond the Clouds () is a 2014 South Korean television series starring Yoon Kye-sang, Han Ji-hye and Cho Jin-woong.
 It aired on KBS2 from February 17 to April 14, 2014 on Mondays and Tuesdays at 21:55 for 16 episodes.
Man of Will is an upcoming South Korean film directed by Lee Won-tae, starring Cho Jin-woong and Song Seung-heon.
Yarrukkum Vetkam Illai (English: "No One Is Ashamed") is a Tamil language film released in 1975 directed by Cho Ramaswamy.
 It starred Jayalalitha in the lead role opposite Sreekanth and was ably supported by actors in supporting roles including Cho Ramaswamy, Manorama (Tamil actress), Sivakumar.
 This film was based on the book by the same name and later a play written by Cho Ramaswamy.
 It became a blockbuster on it release.
 The songs sung by Yesudas became popular.
 The lyrics of one of the song in the film praised the character played by Jayalalithaa as Puratchi Thalaivi, even before she entered into politics.
Duke (also known as Operation) is an upcoming South Korean thriller film directed by Yoon Jong-bin.
 It stars Hwang Jung-min, Lee Sung-min, Cho Jin-woong and Ju Ji-hoon.

Question: Cho Jin-woong played a mysterious villian in a 2014 film written by who?
Answer: Kim Seong-hun