I'm really not sure why this is rated so poorly by others. This is a wonderfully narrated documentary. It is fun, funny, and exciting. The 3D effects are the best I've ever seen, especially the jellyfish. Three generations of our family watched this together with ages from 9 to 69, and we were all so excited when there were Moon Jellies floating in our room. I highly recommend this. True family entertainment at its finest!