I may not be a teacher, but both my parents were, and I grew up going to public school and got many views of the educational system as a whole. I'm really surprised to see that some teachers went to this and were actually offended by what it offered.
This movie did not set out to blame the issues of this country's education on the teachers. It depicts the issues with the SYSTEM. It's a system that protects the teachers' needs over the students in some cases. We all are aware that teachers don't get paid very well, but there are many upsides to a career as a teacher, and some go into this field because they are gifted, but just as many aren't.
What this film attempted to say (in my opinion, successfully) is that we must put the child's needs above all. The system is BROKEN, and that's all the director wanted to say. Through the establishment of the abuses of the unions, the communication of the compelling stats, and the following of just a few examples of a larger populace of suffering students and their families, the director did a BEAUTIFUL job of bringing issues to the surface.
Teachers who are talented, work very hard, and are committed to pushing students and not cruising through should not take offense to this film. However, there are plenty of teachers out there who should find this film threatening, just as many departments of education should, because on the whole, American schools are failing, and we have a lot of work to do.
Because there are educators who are threatened by the message of this film, I say that is what makes it a success. What effective documentary doesn't shake up the system and strike fear in those whose system it threatens? I'm ready for more!!!