Without getting soppy or anthropomorphic, there's something about images of bottlenose dolphins that brings a lump to the throat. That beautiful domed head, the permanent smile, those tiny teeth, the mammal's complex language, and, above all, the dolphin's seemingly instinctive desire to interact with human beings. This sensational 2-D IMAX documentary (produced by the Everest and The Living Sea team) whisks us to the West Indies and Patagonia where its subjects are filmed in the wild, or while entertaining tourists at various research-based institutions. The documentary follows several marine biologists at work: Kathleen Dudzinski studies dolphin communication in the wild; Alejandro Acevedo-Gutiérrez monitors their feeding habits off Costa Rica; Bernd Würsig tracks migratory movements; while naturalist Dean Bernal takes a dip with his unusual companion, JoJo. It is ably narrated by Pierce Brosnan and aptly scored by Sting who has rearranged many of his Police songs for the occasion.