Einstein & Einstein

Einstein and Einstein is a 2013 Chinese film directed by Cao Baoping and starring Zhang Xueying and Guo Jinglin. It was first played in October 2013 at the Youth Generation International Film Forum, and it was first played in theaters in China in 2018. The film was selected to compete for the Crystal Bear in Generation 14plus section at the 64th Berlin International Film Festival, where it won Special Mention Award.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.