NEW YORK: A tense new film shows Japanese fishermen luring thousands of wild dolphins into a hidden secret cove in Japan where activists say they are captured for marine amusement parks or slaughtered for food.

The Cove follows a team of activists including former dolphin trainer from the Flipper television series Ric O'Barry.

They battle Japanese police and fisherman to gain access to a cove in Taiji, Japan, where barbed wire blocks people from filming dolphin killings that begin in September each year.