Blackfish seeks to open our eyes about the inhumane treatment given to orcas at parks like SeaWorld. I still remember going to SeaWorld as a kid with my family, wowed by the killer whale show. Little did I know then what misery those gentle creatures were going through. This documentary draws much of its power from interviews with former SeaWorld trainers: Collectively, they still seem quite saddened by what they helped perpetuate. My review is up at Screen International.