It looks like the same structure and main story as the movie Fast Food Nation, only without the cinematic, actors and such.
It's probably worth watching but I think us Europeans should note that it applies to the US food industry and the EU has many laws to try to stop lots of the bad stuff that happens in the US, not that we shouldn't be concerned about the quality of our food.
The documentary still focusses on the deforestation for soya plants (which 90% are used for livestock, and the rest for consumption by vegetarians etc.). That is a worldwide problem.
I also get angry sometimes for too strict EU food laws, especially in the case of illegal cheese. But maybe those laws are for the better, after seeing the trailer of this movie.