I keep meaning to say, welcome to the forum musashika
Don't forget the Polish role in Enigma, they seem to always get sidelined in war films.
Hollywood's treatment of history can be annoying but Hollywood is following an ancient tradition that goes on today across the world. Other countries film studio's also play loose with history, novels do, plays do. Shakespeare history plays are not 100% accurate by any means. A lot of people come to this forum for three kingdoms, an era they got introduced to by either historically inaccurate games or the novel which swaps kills, invents characters, changes people's personalities. Hollywood just gets called on it more then others.
Why do entertainers do it? Narrative purposes sometimes, sometimes making a story cohesive, knowing what their audience want, blind patriotism, a certain angle they are going for, issues of their own time.
Is it wrong? Unless heading into libel, not legally. Morally? Probably but it is equally wrong to screw over someone who has been dead thousands of years as it is those living and people are very inconsistent at what they object to. I enjoy films and shows based on ye olden history and I wouldn't want to lose that, there will be moments where I think it goes too far or think the changes were bad narratively. So despite being wrong to play with someone's life story, I will watch and enjoy.
“You, are a rebellious son who abandoned his father. You are a cruel brigand who murdered his lord. How can Heaven and Earth put up with you for long? And unless you die soon, how can you face the sight of men?”