The photography was spectacular. This is much better seen on a large screen. The mating scenes between seals reminded me of humans, and dugongs eating a cabbage like substance was remarkably human-like too. A turtle swimming underwater looks like a bird flying through air, and the camera angles circling animals are great. Shark frenzies and teeth are shown close up. Unlike the other viewers, I thought perhaps this was not long enough, though near the beginning I had several concentration lapses (even the second time I watched it). The camera technique is better than David Attenborough's shows, and the last two scenes are some of the best in the film. Some scenes are slow-motion (the waves) and some are sped up (the seal family) but it seems to suit the atmosphere and it's hard to tell.
The panning over coral (the Great Barrier Reef) really reminds me of Koyaanisqatsi, and overall it's great and better than Microcosmos. A 10 just for photography.