The movie stars Oscar nominees Maggie Gyllenhaal and Viola Davis as two gritty women who try to take over a failing urban school. Oscar winner Holly Hunter plays a headstrong but compassionate union official fighting the women’s plans. The film played to an appreciative crowd last week at the Republican National Conventional in Tampa, with many movie goers driven to tears before the end credits rolled. Democrats also got a peek at the film yesterday, courtesy of a screening held by Democrats for Education Reform. Randi Weingarten, president of the American Federation of Teachers, acknowledged the film’s power and “sense...