I will have to watch the video to comment on it's content, but have heard LOTS of chatter about it. From what I have heard the 'documentary' is very biased and some information has been used out of context.
Perhaps someone with more knowledge of the specifics can comment?
Having been involved in a number of Citizen Science and Marine Conservation initiatives with the Vancouver Aquarium I have nothing but respect for the individual researchers and the organization for it's efforts in those specific areas.
Before tarring the whole organization with the same brush consider both the source of the video, and the other initiatives the Vancouver Aquarium is part of (science, conservation, education, marine mammal rescue / rehabilitation etc)
I will reserve judgement on the whales in captivity part until I have time to watch the video.
This issue, and discussing support of the organization should be relevant to the Underwater Photography Community as they have a number science initiatives that local underwater photographers can and do contribute towards. Off the top of my head these include; Rockfish Surveys, Annual Lingcod Egg Mass survey, Sea Star Wasting Syndrome, Glass Sponge Reefs etc.
Input from their researchers and support from the organization has helped with numerous conservation issues over the years which are directly relevant to Scuba Divers and Underwater Photographers. Some of these include creation of Rockfish Conservation Areas, reintroduction of Black Rockfish to Howe Sound and Bottom Fishing Closures for Straight of Georgia Glass Sponge Reefs. Aquarium staff are working with other non-profit groups that I am involved with on two other glass sponge reef initiatives;
1) Proposed expansion of Halkett Bay Provincial Park to include glass sponge gardens and glass sponge reef (bioherm) all of which are within recreational scuba depths.
2) Expansion of Bottom Fishing Closures to include ALL known glass sponge reefs in Howe Sound (5 of which occur shallow enough for air diving which is unique in the world).