THE DAY OF THE DOLPHIN (1973)
MIKE NICHOLS
Plot
Dr Jake Terrell, who has been training a pair of dolphins for many years, has had a breakthrough. He has taught his dolphins to speak and understand English, although they do have a limited vocabulary. When the dolphins are stolen, he discovers they're to be used in an assassination attempt. Now he is in a race to discover who is the target, and where the dolphins are, before the attempt is carried out. Slightly bonkers hybrid: eco fable meets state conspiracy thriller! Get yer Speedos awn!