Here we have a sports-based drama so dang inspirational it could only be "based on a true story." Sure enough, AnnaSophia Robb (Charlie and the Chocolate Factory) is real-life 13-year-old surfing champion Bethany Hamiliton, who got her left arm munched off by a shark, but kept hanging 10 through adversity. Think 127 Hours with way more shout-outs to Jesus. Helen Hunt and Dennis Quaid are on mom-and-dad duty. Carrie Underwood plays a youth minister. So there's that. 106 minutes PG.