
I am going to watch it in the right time, but meantime I found out a question that make me laugh. I have no issues with the black people, they are people just like us, the white people. We are the mutants, we became white about 8000 years ago after migrating in the far north (at least in Europe) or in Asia from Africa, but historically speaking the Japanise people were pretty isolated for large periods of time (not because they were living on islands but that counted also) and the samurais where head hunters and in constant war whit some small periods of peace, so the number of black people were small.
As I remember the book does not have black people and that's ok. The writting the book in the new series and history in general is pretty bad. If the movie or the book is purely fantastique it's ok to let black people, but an ecranization it's not. No rights are forbidden or broken, that's the fact.