With an introduction by Academy-Award winning actor, Chris Cooper, this feature-length documentary is about three children living with significant communication and physical disabilities struggling against the public schools in an emotional battle to prove their worth.. Over the course of two and a half years, CERTAIN PROOF follows the lives of Kayla, Josh and Colin, three children with cerebral palsy. Despite multiple disabilities, they fight to prove that they are able to learn and deserve to be taught. Colin finds “No Child Left Behind” has exceptions; Kay combats harsh stereotypes inside middle school; and Josh faces continual doubt that he can learn at all. They and their families dare to hope in a striking testament to the complexity of the human spirit.. . World Premiere at Vail Film Festival 2011. . Hollywood Premiere at Dances with Films 2011. . Best Cultural Minority Documentary at Southern Appalachian International Film Festival 2011