Organizations such SeaWorld have been keeping dolphins and whales captive in little more than a glorified swimming pool. This needs to be make illegal, and current captive cetaceans need to be released. They can be kept in sea pens that will have a minimum size to be established that allow cetaceans to have a more normalized environment for their species. Some of these current captives, such as Lolita and Tilikum, could be rehabilitated to rejoin their family pods.
Blackfish accurately protrays the life of captive Orcas in particular, despite SeaWorld's rhetoric to dismiss these claims. If you want to see that change for orcas and all cetacens, pleas sign this petition.