The documentary “Backpack Full of Cash” tells the story of the well-funded, duplicitous attack on public education. It was created by a professional team that had trouble raising money since most foundations docilely follow the lead of the Gates Foundation. “Backpack” was intended to be the answer to “Waiting for Superman,” but the filmmakers lacked the kind of lavish funding from billionaires like Bill Gates and industrialist-evangelical Philip Anschutz for production, promotion, and marketing that “Superman” had.

The documentary shows that charters, online charters, and other forms of privatization are causing public schools to be underfunded, closed, stripped of resources, while charters flourish and select their students.

The title of the film was taken from an interview that the filmmakers had with Jeanne Allen, who is a clone of Betsy DeVos. Her “Center for Education Reform” is funded by foundations and financiers who want to privatize public education.

Allen has given the documentary widespread attention because she keeps attacking Damon for narrating it. He is the proud product of public schools, but sends his own children to private schools. He pays their tuition. He doesn’t think the public should pay their tuition. He understands that supporting public schools is a civic duty, not a consumer choice. He can afford a private security force for his family, but he doesn’t expect the public to pay for his private choices.

Allen doesn’t understand the civic duty thing. Like her mentor Betsy DeVos, she wants to abolish public schools or let them languish as one of many choices, even though they are required to take the children that no one else wants. She wants them to survive as a dumping ground, not hold pride of place as a basic democratic institution.

For some reason, she thinks Matt Damon might notice her. Dream on, Jeanne.

What you are doing with great success is giving the pro-public school documentary the fabulous publicity that its filmmakers can’t afford to buy.

See the film for yourself. Organize a community viewing. PBS was paid millions by rightwing foundations to run a libertarian propaganda film earlier this year. But for some reason, PBS can’t find a way to air “Backpack.” No billionaire backers? Too controversial?

Thank you, Jeanne Allen, for calling attention to this important documentary. Keep it up.