Captured off the coast of Iceland as a two-year old in 1983, the Orca whale Tilikum has long been a feature attraction at SeaWorld in Orlando, Florida. During that time, though, he’s taken the lives of three trainers. In this documentary, Gabriela Cowperthwaite examines the impact that virtually life-long captivity has had on the whale.

Blackfish¬†screens at the RPL Theatre tonight at 9 p.m. and Sunday at 7 p.m. Here’s the trailer: