"Won't Back Down" stars Viola Davis (left) and Maggie Gyllenhaal as two mothers determined to change things at their children's failing inner-city school. | 20th Century Fox photo
The cast of the drama "Won't Back Down" features Viola Davis (center, from left) and Maggie Gyllenhaal. | 20th Century Fox photo
Viola Davis (right) portrays Nona Alberts in "Won't Back Down." | 20th Century Fox photo
Maggie Gyllenhaal (from left), Rosie Perez and Viola Davis star in "Won't Back Down." | 20th Century Fox photo
The stars of "Won't Back Down" include Viola Davis (left) and Maggie Gyllenhaal. | 20th Century Fox photo
★★ The focus of the save-our-school drama “Won’t Back Down” practically assures it will fail to join the ranks of great, or even good, education tales. The movie takes the story out of the classroom and into the halls of bureaucracy, leaving almost every kid …