Successful movies with black leads are still pretty rare. Yes we had Eddie Murphy and Will Smith, but it’s uncommon still. I think it doesn’t matters much in the US but I wouldn’t be so sure in Asia. That’s why I think this movie will have a disproportionate amount of US box office - much like Wonder Woman did. 50% US, 50% international rather than the usual 35%-40% US ratio. That limits the overall box office you’d be able to achieve. If this is the case and it crosses $300 million US that still only makes it a $600 million movie.
I also think Black Panther is about more than the black lead. This is an Africa movie, I think the first big budget Africa movie and maybe the first major movie that’s not making Africa this terrible shithole. Putting Africa front and center on the world stage has been a long time coming, and I hope this movie is good and captures the imagination of every Africa child.