Fifty years after the Apollo missions, the lunar surface has new visitors. In January 2019, a Chinese probe landed on the far side of the moon. A scientific feat that focuses all attention on the Moon. Guided by the physicist Christophe Galfard, the film explores this new era around the world. The case study traces back to the production of the film to show how France and China overcame difficulties to create an ambitious and groundbreaking co-production.