On February 24, 2010, SeaWorld killer whale Tilikum killed one of his trainers. It's the most recent and most famous case of an orca in captivity attacking a person, but it's far from the only incident — Tilikum himself had killed two other people before he wound up at SeaWorld. (Read this article and this article if you want to feel freaked out and sad about whales forever.) Now there's a documentary about the orca trade, orca captivity in general, and Tilikum's bizarre story in particular. How much horrific whale-screaming will there be in the movie Blackfish? Based on the trailer alone, a tremendous amount. So much sad whale-screaming, you guys.