Question: Yang Mi starred in what film directed by Ahn Sang-hoon, starring Yang Mi and Lu Han?

Context paragraphs:
Fall in Love Like a Star: Fall in Love Like a Star () is a 2015 Chinese romantic drama film directed by Tony Chan, starring Yang Mi and Li Yifeng.  It was released on December 3, 2015.

20 Once Again: 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.

The Interpreter (TV series): The Interpreter (Chinese: 亲爱的翻译官) is a 2016 Chinese television series starring Yang Mi and Huang Xuan, based on the novel "Translator" (翻译官) by Miao Juan.  It aired on Hunan TV from 24 May to 19 June 2016.  The series is the highest rated drama of the year, with an average national viewership rating of 2.63%.

Reset (2017 film): Reset (Chinese: 逆时营救) is a 2017 Chinese science fiction thriller film produced by Jackie Chan and directed by Korean director Chang; starring Yang Mi and Wallace Huo.  It was released in China on June 29, 2017.

The Witness (2015 Chinese film): The Witness () is a 2015 suspense crime drama film directed by Ahn Sang-hoon, starring Yang Mi and Lu Han.  The film is a remake of the 2011 South Korean film "Blind", also by the same director.  It was released in China on October 30, 2015.

The Negotiator (TV series): The Negotiator (Chinese: 谈判官) is an upcoming Chinese television series starring Yang Mi and Huang Zitao.  It is a spin-off of the 2016 television series "The Interpreter" also starring Yang Mi.  The series will air on Hunan TV in 2018.

Palace (TV series): Palace (Chinese: 宫锁心玉, lit.  "Jade Palace Lock Heart") is a 2011 Chinese television series produced by Yu Zheng; starring Yang Mi, Feng Shaofeng, Mickey He and Tong Liya.  The series was directed by Lee Wai-chu and starred cast members from mainland China, Taiwan and Hong Kong.  The series was first broadcast on Hunan TV in China from 31 January to 21 February 2011.  It is later followed by "Palace 2" (2012).

Eternal Love (TV series): Eternal Love (Chinese: 三生三世十里桃花, lit.  "Three Lives Three Worlds, Ten Miles of Peach Blossoms") is a 2017 Chinese television series starring Yang Mi and Mark Chao.  It is based on the xianxia novel of the same name (released as "To the Sky Kingdom" in English) by Tang Qi.  The series was broadcast on Zhejiang TV and Dragon TV from 30 January to 1 March 2017.

Symphony of Fate: Symphony of Fate (Chinese: 命运交响曲) is a 2011 Chinese television series starring Yang Mi and Feng Shaofeng.  It is a remake of the South Korean drama "Cinderella's Sister" (2010).  The series was broadcast by AHTV and SHTV from 3 October to 18 October 2011.

Yang Mi: Yang Mi (born 12 September 1986) is a Chinese actress and singer.  She made her acting debut in historical television series "Tang Ming Huang", and later received recognition for her leading roles in various television series "Chinese Paladin 3" (2009), "Palace" (2011), "Swords of Legends" (2014), "The Interpreter" (2016) and "Eternal Love" (2017); as well as films "Mysterious Island" (2011), "Tiny Times" (2013–2015), "The Breakup Guru" (2014) and "The Witness" (2015).  In 2017, she won the Best Actress award at the WorldFest Houston International Festival for her performance in "" (2017).  Yang was chosen by "Southern Metropolis Daily" as one of the New Four Dan Actresses.

Supporting paragraphs: Yang Mi The Witness (2015 Chinese film)
Answer: The Witness