20th Century Studios has unveiled video clip: 'a phone call from tyler' for Won't Back Down (2012). Maggie Gyllenhaal and Viola Davis play two determined mothers, one a teacher, who will stop at nothing to transform their children's failing inner city school. Facing a powerful and entrenched bureaucracy, they risk everything to make a difference in the education and future of their children. Watch video clip: 'a phone call from tyler' now!