It is excellent and well worth a watch.
Here is one review:
http://time.com/5030321/mudbound-movie-review/
Mudbound works as a thumbnail picture of midcentury American racism and injustice, and as a reminder of how slowly things really change in this country, as much as we like to think of ourselves as progressive thinkers and lovers of freedom. But you can’t just write ideas on the screen: Your performers have to embody them, and there’s not a minute in Mudbound that doesn’t feel deeply felt and believable. Rees, who previously wrote and directed the 2011 coming-of-age drama Pariah, has shaped the material beautifully: This is just a good story, period, and Rees never loses sight of that. It’s told from the shifting points of view of each of its major characters, but it never feels cluttered or confusing. And the movie’s sense of history is woven tightly into its landscape. At one point Mulligan’s Laura reflects, in voice-over, on the muddy bleakness of her surroundings (“I dreamed in brown”), and Rachel Morrison’s cinematography provides the visual evidence. Morrison makes this world look both enduring and unsettling, the kind of place whose spirit creeps into your bones. Although Mudbound is being released in select theaters, it’s also available on Netflix, and its complex visual beauty works even on the small screen.
Sadly, we seem to have learned too little over the years.