To be fair, anyone that uses Hollywood movies for history lessons is not exactly the sharpest knife in the drawer.
Hollywood movies are not historical documentaries. They are created for one thing, and one thing only: to make money for their investors and the studios. Writers take an idea, and construct scenarios around carefully crafted plotlines and character development to attract people to spend money. Some are better than others.
If this same movie were created in Japan, they'd probably have a Japanese focused hero. Or in Britain, or in Canada, etc. When in Rome, cater to the demographic where you can turn the greatest profit.
