I just got done watching The Cove.
I am not editing my response. I don’t think I have the objectivity to do a proper review. You should try and watch the film if you can.
The trailer is here:
I’ve seen dolphins in the wild (New Zealand) and I’ve also seen them in captivity (Florida). And once you have seen the former you feel very guilty about the later. You have to be a very special kind of stupid not to be able to see the intelligence and obvious sentience in these animals. While the film does dwell on a range of issues why the gratuitous killing of Dolphins should be stopped, the most basic and overwhelming reason is that killing sentient beings is wrong.
You can find out more here.