If the film inspires a few kids to take up chess, that’s fine with me.
As far as “black” movies go, I loved the ray Charles movie and the Tina Story movie - “What’s Love Got to do With it?” Both amazing people with very interesting lives. You don’t need to make things up just because you want them to be true.
I am with you 100%. Anything that teaches kids to think hard is a huge plus in my mind - whatever their ethnicity or gender.
Brooklyn Castles, for example, is an inspiring movie.