You have many leisure choices in and around the university.
Yunnan University Cinema in the Chenggong campus is located in the east building of the library. In this modern cinema, you can enjoy fantasy 3D films at much cheaper ticket prices than in the outside market, but no free 3D glasses are provided; you need to buy a pair for 10 yuan ($1.50).
Don't forget that you can enjoy a cup of coffee in an artsy cafe in Chengong.
There are a lot more entertainment choices on the street just outside the south gate of the university.