This is Genghis Khan, the Mongol! Well, it's really actor Tadanobu Asano (Zatoichi) as the historical character who conquers Mongolia. The movie focuses on the youth of this great warrior and how he ultimately became Genghis Khan! It seems like an origin story for a comic book character, but I think this will definitely appeal to history buffs.
"How to Enhance Children's Imagination of the Past When Teaching History"