I mean, five stars for triggering everyone by upsetting them with the practices of the meat industry. Anyone continuing to eat meat whilst being upset by this is just practicing double standards.
As a film I mean... meh. The acting is just about tolerable and you're kinda left to your own devices to fill out the plot holes. Setting is pretty cool, some good shots in there and the score is great. Bit of a shame that the sound design is terrible in the first half.
Long story short, if the content of the film was that shocking to you, then the film did its job.