So, how about a salve for all the complaints about Hollywood this week, eh? And it comes in the form of the newest trailer for “Bessie.” Damn, I’m pretty excited about this. I really, really am. A diverse cast. Juicy roles for women. Exploration of sexuality. But that’s what you get when you make movies about underrepresented populations. And that’s also what you get when you allow talented women, people of color and out directors like Dee Rees (of “Pariah” fame) to helm a project. More of this, Hollywood, more of this.