I would enjoy this movie if the director could did some homework on history.
1. The costume of the Chinese officers and solders are very strange, it is a mixture of China in Yuan dynasty (Mongolian style), Ming dynasty, and Qing dynasty (Manchurian style). Ironically the Koreans (mostly man) in this movie are dressed in the costume of China in Ming Dynasty, which is correct because they learnt it from China.
2. In Ming dynasty, the kingdom of Korea was under sovereign of China. The emperor o China declared Korea as a kingdom which China would never fight with. Actually, in 16 century, Japan invaded Korea and it was China helped them to win the war. This war cost the Ming dynasty a lot which was one of the reasons of its fall. And after its fall into Qing dynasty, the kingdom of Korea was still loyal to Ming and kept using the era name of the last emperor of Ming internally till 19 century
3. Gunpowder was invented in China and already equipped in the army as early as in 11 century. In Ming dynasty they even had an army equipped with guns and cannons, which was called Divine Engine Division (Shen Ji (Shin Ge) Ying, the first two characters are same as this movie's title, and the last one means division). It's hard to believe they didn't show any of this in this movie.
I could understand Korea proud of their nation and achievement, but this should not be based on screwed history.
