The Cove ~ A Documentary Film (2009) https://www.youtube.com/watch?v=_eknshN_uhM
The Cove exposes the slaughter of more than 20,000 dolphins and porpoises off the coast of Japan every year, and how their meat, containing toxic levels of mercury, is sold as food in Japan and other parts of Asia, often labeled as whale meat. The majority of the world is not aware this is happening.
To take actions:
http://www.seashepherd.org/cove-guardians/
http://www.seashepherd.org/cove-guardians/video.html