Aside from being some of the greatest filmmakers on the planet, the Coen Brothers have been on record as saying:

"You can’t sit down and say, ‘I’m going to write something that follows the dictates of what the culture thinks should be happening, in terms of cultural diversity in storytelling.’ To be honest with you, that’s completely lunatic,” said Joel Cohen.

“You don’t sit down and write a story and say, ‘I’m going to write a story that involves four black people, three Jews, and a dog’ — right?” Joel continued. “If you don’t understand that, you don’t understand anything about how stories get written and you don’t realize that the question you’re asking is idiotic. It’s not an illegitimate thing to say there should be more diversity in an industry. But that’s not what that question is about. That question is about something else.”

Ethan concurred, adding: “It’s important to tell the story you’re telling in the right way, which might involve black people or people of whatever heritage or ethnicity – or it might not.”

Anyway if you want good movies watch Coens shit. Anything's good but my top picks would be Barton Fink, Big Lebowski, Fargo and No Country for Old Men.