This was a decent watch, not for cinematic reasons per se but for making the world a better place. I watched this with my son, Julian, and I was pleased with how they took the true story, including the actual dolphin from it, and, especially for kids, promoted environmentalism, caring for animals, etc.--really solid and important aspects that need to be, more than ever, emphasized in the youth of today.
My only qualms is that I have very mixed emotions about the casting. I know that to get an important environmental message heard, and thus the film watched, you have to incorporate Hollywood... read the rest.
Some material may not be suitable for children under 10. These films may contain some mild language, crude/suggestive humor, scary moments and/or violence. No drug content is present. There are a few exceptions to this rule. A few racial insults may also be heard.