WARNING!!! This movie is being tagged in some stores as a 3D movie...and it isn't. It was 3D in IMAX, but not on DVD or BluRay. Once the 3D is removed, it is just another underwater travelogue. Jim Carrey's narration is totally underwhelming as well.But finally I get to the real complaint. It is little more than a plug for the global warming theory this time aimed at children. I'm glad that I only rented it. I would have been really upset had I paid the over-inflated "3D" price for it. Maybe it was better in the theater, but it's a loser on disk, especially when compared to the numerous other fine IMAX endeavors out there.

Well to start off, for being a documentary basing the majority of its appeal off of nice narration by a very talented actor and 3D cinematography, this is as fun to watch as you would expect. It was definitely a nice thing to do on an afternoon with the family, and it really gives you a feel for underwater landscapes and the unique motions and routines of some random deep sea creatures. It is filled with entertaining moments, and you will really feel immersed.The big negative for me was being somewhat ambushed by the global warming message several times when there was no indication to expect this (other than the seemingly true assumption that movie makers are propagating liberal political positions in titles that aim to draw children or families). I get that it is a theorized dilemma that means something to a portion of our culture, but I would also argue that it is widely dismissed among another portion with some sound, scientific reasons to form opposition. The point is- it has not been proved factual yet and has no relevance in a movie that touts a "fun" look at sea life. Plus, it is stated as fact several times during the film and implements the appeal of some heart-warming sea lions to sell the message.Outside of this and the brief fish sex, it is a good movie worth watching. However, if you don't agree that CO2 is polluting and corrupting our wildlife, maybe give your kids a quick heads up before they watch something they may take to heart, as this film appears to have been made with that in mind.

Anymore, specialty IMAX features seem to be about nature or dinosaurs. It's repetitious to be watching another underwater creature 3D film, but it's hard to deny the entertainment value of seeing rare monstrosities and beautiful mysteries jumping out of the screen and scurrying about at what feels like an arm-length away. No matter how limited the subject matter, the effects of IMAX are always outstanding. Clocking in at less than one hour, Under the Sea doesn't outstay its welcome and gives us a tidy look at some of the coral reef's most impressive wildlife. Jim Carrey narrates and manages to only rarely inflect his recognizable comedically exaggerated voice.Starting in New Guinea and working around the southern coral reefs of Australia, Under the Sea investigates the lives of many fascinating fishes. From the stonefish, the most venomous fish in the sea, to sea snakes, the most poisonous animal in the ocean, the audience is subjected to a myriad of stunning sea life. The coral triangle where the film starts is home to more marine species than anywhere else on Earth, including the alien presence of cuttlefish, symbiotic shrimp and gobies, squid, jellyfish and more. Australia's 12,000-year-old Great Barrier Reef houses schools of convict fish (the food of the adults is still completely unknown; some scientists speculate that the babies feed them slime, while others predict they consume their own young), rare sea dragons, great white sharks, whales, sea lions and more.As if meeting a requirement, Under the Sea also delivers a public service announcement insisting that humans need to start caring about the environment; harmful carbon dioxide is rapidly destroying the reef and making it impossible for the various sea life to survive. The final moments show the leisurely, playful sea lions adorably snuggling up to the camera – had they shown the hideous stonefish instead, the effects would be completely different, even though they are just as wondrous.While all of the IMAX films deliver an engaging 3-D experience, Under the Sea takes the adventure one step further (or closer) by bringing its fascinating subject so near to the viewer one can't help but reach out just to make sure they're still in a theater. Every underwater being appears literally within touching distance, giving the audience the impression that they are the divers filming these wonders of nature. Jim Carrey's narration may contain interesting facts about the seldom seen proceedings, but it's hard to pay attention to his voice when you're dodging looming sea snakes and schools of catfish.The Massie Twins

(Based on an advance preview): This new IMAX documentary (calmly narrated by Jim Carrey) is a WONDERFULLY done and enjoyable film. While I'd expected to see mainly just the "usual suspects" in sea-based films, this one has loads of fabulous footage of many SELDOM-seen species such as (color- and texture-changing) cuttlefish, sea dragons, squid, jellyfish, Australian sea lions and others. The natural camouflage and actions of some of these creatures is often mind-boggling, and the 3-D feature just ADDS to the depth and appreciation for what has been achieved. Besides being fascinating and beautiful, the film also points out the ever-increasing DANGERS to the sea environment caused by rising temperatures and increased pollution. Overall, a really impressive and pleasurable effort, highly recommended & so good I wish it had been much LONGER in length!