Mandarin Duck is a 1985 romantic comedy drama film directed by Hong Kong director Lu Jianming, starring Er Dongsheng and Wang Xiaofeng. At the 5th Hong Kong Film Awards in 1986, Wang Xiaofeng won the Best Actress Award for this film, and screenwriters Lu Jianming and Tang Wing-yong also won the Best Screenplay Award for this film.

Wang Xiaofeng
Yu Xiaobao (Er Dongsheng) is just a small salesman, he and his girlfriend Jenna (Zuo Yanling) have been in a relationship for many years, and the two agreed to enter the palace of marriage hand in hand. However, Jenna's personality is arrogant and hot-tempered, and does not take Yu Xiaobao in her eyes, making Yu Xiaobao and her every minute and second together be tortured. Yu Xiaobao's friends all advised him to break up with Jenna, but Yu Xiaobao was still hesitating.
Jin Jin (Wang Xiaofeng) and Zhao Dahao (Pan Zhenwei) have been in contact since their college days, however, as time goes on, Zhao Dahao does not focus more and more on Jin Jin's body, but instead lingers in the warbler and swallow, which makes Jin Jin very painful. By chance, Yu Xiaobao and Jin Jin met, and the two people who had the same illness and pity saw each other as they were, and they were impulsively married.