Question: What film starred the Korean actress Han Hyo-Joo?

Context articles: Dong Yi (TV series)
Baik (director)
Always (2011 film)
Golden Slumber
W (TV series)
Brilliant Legacy
Love, Lies (2016 film)
Han Hyo-joo
Love 911
Cold Eyes

Dong Yi () is a 2010 South Korean historical television drama series, starring Han Hyo-joo in the title role.
 About the love story between King Sukjong and Choi Suk-bin, it aired on MBC from 22 March to 12 October 2010 on Mondays and Tuesdays at 21:55 for 60 episodes.
Baek Jong-yul (born 1970), known as Baik, is a South Korean film director.
 Baik worked as a visual artist and advertisement director before entering the film industry.
 His feature debut - a romantic comedy film "The Beauty Inside" (2015), deals with the love between a man who becomes a different person every day and a girl (played by Han Hyo-joo), who loves him.
 Baik said that there were definitely challenges to create a film with so many different actors playing the same character as each actor came to the set with his or her own interpretation of the character.
 His effort won him the Best New Director at the 52nd Grand Bell Awards in 2015.
Always (; lit.
 Only You) is a South Korean film directed by Song Il-gon.
 Starring So Ji-sub and Han Hyo-joo in the lead roles, it is about a romance between an ex-boxer who has closed his heart to the world and a telemarketer who remains spirited despite slowly going blind.
Golden Slumber is an upcoming South Korean thriller film directed by Noh Dong-seok, starring Gang Dong-won and Han Hyo-joo.
 It is based on the 2007 Japanese novel of the same name written by Kōtarō Isaka.
W () is a 2016 South Korean television series, starring Lee Jong-suk and Han Hyo-joo.
 It aired on Wednesdays and Thursdays at 22:00 (KST) on MBC from July 20 to September 14, 2016.
Brilliant Legacy (; also known as Shining Inheritance) is a 2009 South Korean television series starring Han Hyo-joo, Lee Seung-gi, Bae Soo-bin and Moon Chae-won.
 It aired on SBS from April 25 to July 26, 2009 on Saturdays and Sundays at 21:45 for 28 episodes.
Love, Lies () is 2016 South Korean period drama film directed by Park Heung-sik, reuniting "The Beauty Inside" co-stars Han Hyo-joo, Chun Woo-hee and Yoo Yeon-seok.
 The story takes place in 1943, during the Imperial Japanese occupation of Korea.
 In the film, best friends Jung So-yul (Han Hyo-joo) and Seo Yeon-hee (Chun Woo-hee) are two of the last remaining "gisaeng".
 Although they enjoy pop music, they are committed to singing "jeongga", or classical Korean songs.
 So-yul's life falls apart when her lover, pop music producer Kim Yoon-woo (Yoo Yeon-seok), falls in love with Yeon-hee and helps her debut as a pop singer.
 The story follows So-yul's downward spiral as she is consumed by uncontrollable jealousy.
Han Hyo-joo (born February 22, 1987) is a South Korean film and television actress.
 She is best known for her leading roles in television drama series: "Brilliant Legacy" (2009); "Dong Yi" (2010) and "W - Two Worlds" (2016); as well as the film "Cold Eyes" (2013), for which she won Best Actress at the 34th Blue Dragon Film Awards.
Love 911 (; lit.
 "Bandage" or "Band-Aid") is a 2012 South Korean film starring Go Soo and Han Hyo-joo about an unlikely romance between a dedicated firefighter with a painful past and a cold-hearted doctor who is solely focused on her career.
 It was released in theaters on December 19, 2012.
Cold Eyes (; lit.
 "Stakeout" or "Surveillance") is a 2013 South Korean film starring Sol Kyung-gu, Jung Woo-sung, Han Hyo-joo, Jin Kyung and Lee Junho.
 A remake of 2007 Hong Kong film "Eye in the Sky", the film is about detectives from the surveillance team of a special crime unit who work together to take down a bank robbing organization.