What I really wish is that a documentary had been filmed about the process of rehabilitating "Winter," the miraculous dolphin (who plays herself in the film, which does make it ever more heartwarming) and creating her prosthetic tail. It would have been amazing to view footage of the dolphin being rescued and see her attempts to swim without a proper tail, the rejection of the original prosthetic prototypes and finally her triumphant return to self. This, accompanied by interviews of those involved in the process, would have made for a far more interesting feature than this one.
As it is, the film is pretty dull a lot of the time. But, if you are moved by stories like this, and you can ignore everything but the simple and amazing story, it really is quite a moving film. Apparently they now use the gel sleeve that made the prosthetic more comfortable, for human prosthetics as well. At the end of the film, they provide us with what seems like real footage (though I'm not sure) of amputee children and adults who come to visit the disabled dolphin. That definitely gets the tears flowing. (It's okay, I was flying Business Class. You're totally allowed to cry in Business Class.)