Movies: Shark water

A group of friends enjoying a weekend steal a couple of jetskis racing them out to sea, ending up in a horrific head-on collision. They struggle to find a way home with a badly injured friend while from the waters below predators lurk....

Chris Hemsworth has a real passion for sharks. The Hollywood star talks to experts to find out more about the apex predators of the oceans....

Forrest Galante explores stunning kelp forests and ocean depths never seen by humans to study the unusual sharks around the tip of South Africa....