Watch Gamera the Brave

This is an action adventure movie set in a fantasy world. A young boy named Toru finds an egg for an unknown creature. He brings it home and keeps it safe until a small turtle hatches. He and his friends raise the turtle. When a man eating monster shows up, the turtle sets itself between the people who have raised it and the monster.

This fantasy adventure is set in Japan. There is a myth about a giant turtle that will be reborn and save the world. Could this be the turtle who will save the world is the question.