The trailer for this movie looks exciting and intense. But when you finally watch it, it's not as exciting as the trailer makes it look. It's definitely intense - you won't be able to fall asleep while watching, but it has lulls in the plot. Plot-wise, it's meant to depict the life of the last princess of Korea; as you'd expect, it's not a happy story. I might be able to argue it has a bittersweet ending, but not happy. There's nothing objectively wrong with the way the story unfolds, it's just not the kind of ending that I find enjoyment out of, so for me, it's not a higher rated movie.