Her marriage has long gone cold, the treatment by the Royal family is causing a mental breakdown, and now Princess Diana is forced to spend the holidays with the family. These three days will prove to be a turning point in her personal and public life. Pablo Larraín knows how to convey mental states through cinematic means. Dramatic moves are a pretty narrow hanger on which he hangs his genius cinema. Kristen Stewart's glorious performance, the majestic design, and Claire Mathon's expressive camerawork, manage to convey in the most intimate way what goes through the soul of the unsettled princess. The result is a rare and critically acclaimed achievement.