The Day of the Dolphin (1973)

Unwittingly, he trained a dolphin to kill the president of the United States.

A marine biologist teaches his dolphins to communicate in English but shady characters plan to kidnap the trained mammals for a more sinister purpose.

Genres: Drama, Science Fiction, Thriller, Adventure

Stars: George C. Scott, Trish Van Devere, Paul Sorvino, Fritz Weaver, John Dehner