This film is DOA as far as I'm concerned. It could be so much more, but the title and premise behind it kill its chances. So what, it's a black-centric film. That's not the issue. The Cosby Show was loved by millions. Good entertainment is good entertainment.
It's short-sighted to say the least to have a racially-defined superhero. So what if Superman has been portrayed as being white. ANY kid can put on a Superman costume to "be Superman", as his name isn't White Superman. Same goes for Spiderman, Batman or any of the others. We've all had trick or treaters of various backgrounds dress up as Superman or any other superhero and it's all good.
What are non-black parents supposed to tell their kid about Black Panther? " Sorry, Johnny. You can't dress up as Black Panther. That's only for black people." Or, " Sure, dress up as Black Panther. Just be ready to be demeaned as a culture vulture by the self-segregationist crowd..."
They should've just used a different name for this superhero. In their attempt to be edgy and visionary they're just going to turn people off. But hey, the self-segregationists will have their egotistical victory for a millisecond.