People are complaining it's biased, but what they are showing about how meat is raised and produced is true. It's not comfortable knowledge, but that doesn't stop it from being factual. And everyone deserves to know where their food comes from. Your beef comes from the Amazon being destroyed. Your chicken comes from diseased, cramped houses. Your pork's feces might have been sprayed on people's homes at some point.
You deserve to know that they don't test meat for pathogens before it gets to the grocery store. You deserve to know what you are putting in your body.
Yes, it's biased, as all documentaries are, but I wonder how many people would have rated this higher if it said to eat steak every day.