Question: The Chinese film 20 Once Again is a remake of which 2014 South Korean comedy?

Context articles: Miss Granny
Sweet 20
20 Once Again
Jail Breakers
Slow Video
In Love and War (2011 film)
Boom (entertainer)
Sweet 20 (2017 film)
Silent Witness (2017 film)
North Korean Guys

Miss Granny (; lit.
 "Suspicious Girl") is a 2014 South Korean comedy-drama film directed by Hwang Dong-hyuk.
 Na Moon-hee stars as a woman in her 70s who magically finds herself in the body of her 20-year-old self (Shim Eun-kyung) after having her picture taken at a mysterious photo studio.
 After opening in theaters on January 22, 2014, it became a huge box office hit, with 8.65 million tickets sold.
Sweet 20 (Vietnamese: "Em là bà nội của anh"; lit.
 "You are my grandmother") is a 2015 Vietnamese comedy film directed by Phan Gia Nhat Linh and starring Miu Le, Hua Vi Van and Ngo Kien Huy.
 The directorial feature debut of the director, the film is a remake of the 2014 South Korean film "Miss Granny".
 It was released in Vietnam on December 11, 2015.
 It became the highest-grossing Vietnamese film at the Vietnamese box office.
20 Once Again (Chinese: 重返20岁 "Chóng fǎn èrshí suì") is a 2015 Chinese comedy film directed by Leste Chen and starring Yang Zishan, Gua Ah-leh, Bolin Chen and Lu Han.
 The film is a remake of the South Korean movie "Miss Granny".
 It was released on January 8, 2015.
Jail Breakers () is a 2002 South Korean comedy film starring Sol Kyung-gu, Cha Seung-won and Song Yoon-ah.
 It was a box office hit with a total of 3,073,919 admissions nationwide, making it the 4th highest grossing Korean film of 2002.
Slow Video () is a 2014 South Korean comedy film written and directed by Kim Young-tak, starring Cha Tae-hyun and Nam Sang-mi.
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.
Lee Min-Ho (born May 10, 1982), better known as Boom (Hangul: 붐), is a South Korean rapper, singer, actor, radio host, and television presenter.
 He has made numerous television appearances in South Korean comedy shows and has acted in sitcoms as well.
Sweet 20 is a drama romantic comedy musical Indonesian film, a remake of the 2014 South Korean film "Miss Granny", under collaboration of Star Vision Plus Indonesia and CJ Entertainment.
 This film is directed by Ody C. Harahap and stars Tatjana Saphira, Morgan Oey, Kevin Julio, Lukman Sardi, Niniek L. Karim and Slamet Rahardjo.
 This film tells the story about Fatmawati, a 70-year-old grandmother who magically gets back into her 20s after taking a photo in a mysterious photo studio.
 Sweet 20 was released on 25 June 2017 on the event of Eid al-Fitr.
Silent Witness () is an upcoming South Korean crime thriller film starring Choi Min-shik and Park Shin-hye.
 It is a remake of the Chinese film "Silent Witness".
North Korean Guys (), also released as Lost in the South Mission: Going Home, is a 2003 South Korean comedy film directed by Ahn Jin-woo.
 The film depicts a pair of North Korean sailors who find themselves in South Korea and their subsequent attempts to return home.