Who's the movie called Big Sister?

Does the subject want to ask, "Who is the elder sister? What movie is it? " ? Lost in Russia. Lost in Russia is the fourth work in the "Embarrassment Series" directed by Xu Zongheng, and it is a New Year's Eve comedy movie starring Xu Zongheng, Yolanda, Shen Teng, Guo Jingfei, Johnny and Jia Bing. Who is the elder sister? It's a line from Shen Teng in the movie Lost in Russia. In the movie, Xu zhēng mistook Shen Teng for big sister, and Shen Teng said, "Who is big sister?" Make the audience laugh. Lost in Russia was released on June 25th, 2020.