This film is amazing and good in the sense that it provokes and inspires people to follow the message it brings (a bit like in "An Inconvenient Truth", although this film addresses one main issue). It addresses the very serious issue of overfishing. The film presents good points about the subject and backs it up with valid evidence. The points explains the main points of the past and the present about overfishing, many of which are astounding. The evidence they provide can be breathtaking (for example, the amount of tuna the EU wants to fish per year). This proves that the people have researched well and it really is true that overfishing is one of the main environmental problems of our corrupted world today.
The visuals are also impressive. The most upsetting are the thousands of dead fish you see in nets, boats and fish being cut up and transported around the globe. The most enjoyable part of the film are the visuals of the coral reefs and open seas, teaming with fishy life. :-)
As far as I know this film is still out in the cinema, so if you have the opportunity, please go and see it as soon as possible. If you have a mind that is even one millimetre open, it could well change your vision about eating fish forever.
7 and a half out of ten.