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The recently released film, "Won't Back Down" has presented education activists with something teachers long for: a teachable moment. The movie's director, Daniel Barnz, has his homework assignment - begin to understand the mess you have landed in.

A little less than two years ago Davis Guggenheim, director of "Waiting For Superman," asked teachers to send him feedback on his movie. He got an earful, as I described here. This week, Daniel Barnz, the director of "Won't Back Down," also headed to the Huffington Post to try to explain himself. His essay suggests that he is not opposed to unions, and that he simply wanted to tell an inspirational story.

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