The issue of Cultural Appropriation in Movies began when films were only White casts.
"Non-whites" (in quotes because other whites were persecuted as well), were seen as lower class citizens unworthy of being entitled to play and act in film. Black casts were relegated to certain roles in television. And in turn, those in Black Face were acting out a stereotype that portrayed Blacks as Big-Lipped, Monkey faced, people. And with this, others now perceive Black people to be just that, which people took as how Black, or in my case "Indians", really behaved and acted in reality.
It's also why White Chicks was the best retaliation because it's stereotyping the upper class white chick. Played by Black men which adds a lot more hilarity to the entire Cultural Appropriation.
But also, what I would want to say would be better suited in the P/R thread.