The filmmakers behind Saving Shiloh, the third movie to be adapted from Phyllis Reynolds Naylor’s series of children’s novels, must think kids are a pretty slow lot, considering the way they repeatedly hammer home the moral of the story. The picture has more respect for the intelligence of the title dog than for its audience. That’s too bad, for the story it tells – of the redemption of Shiloh’s cruel former owner (Scott Wilson) – is unusually sophisticated for a children’s picture.