Orca.

About Orca

Orca is a 1977 thriller film directed by Michael Anderson, from a screenplay by Luciano Vincenzoni and Sergio Donati based on a novel by Arthur Herzog, and starring Richard Harris, Charlotte Rampling, Will Sampson, Bo Derek, Keenan Wynn and Robert Carradine. The film follows a male orca tracking down and getting revenge on a fishing boat and its captain for unintentionally killing the whale's pregnant mate and their unborn calf.