I watched this film on Netflix 2 days ago. I found it really interesting. For those who may not have heard of it, this was a documentary made in 2013 regarding orcas/"killer whales" in captivation, particularly focusing on incidents of orcas attacking and even killing their trainers at Seaworld and other similar parks, including those in regions outside the U.S. (e.g., Spain). If you're interested in anything regarding marine animals or places that use non-human animals as tourist attractions, I'd definitely recommend this.

>>1 Not seen this film/movie/doc likely wont since the guy who came up with the title must be a fucking idiot because a orcas/killer whales is not a fish its a mammal and they should know better if they are making a film documentary shouldn't they.

Perhaps it is an analogy to the ignorant masses who watch these animals perform tricks for their amusement, not thinking about the fact that they may be suffering immensely. So ignorant that they do not know that orcas are whales.