The famous Bethany Hamilton who tragically got her arm bitten off by a shark 6 years ago is now 19 and getting ready for the filming of her story. They began filming on January 25 (today), and AnnaSophia Robb is set to play her. Hamilton will be doing the surfing, but Robb will be doing the acting. Also rumored to play in the movie is Carrie Underwood. The movie's title is Soul Surfer.