The Day of the Dolphin is a 1973 American science fiction thriller film directed by Mike Nichols and starring George C. Scott. Based on the 1967 novel Un animal doué de raison (lit. A Sentient Animal), by French writer Robert Merle, the screenplay was written by American Buck Henry. Plot A brilliant and driven scientist, Jake Terrell, and his wife, Maggie, along with their small team, are training dolphins to communicate with humans at their remote island research facility. They teach Alpha ("Fa"), a dolphin they have raised in captivity for four years, to speak simple English. They introduce him to a female dolphin captured from the wild, whom they name Beta ("Bea"). Fa regresses to his "native language" for a while, but soon teaches Bea to understand English, too. Terrell's research is funded by the Franklin Foundation, headed by Harold DeMilo (Fritz Weaver). An undercover government agent for hire, Curtis Mahoney (Paul Sorvino), blackmails DeMilo into allowing him access to Terrell's facility under the guise of a freelance journalist writing about dolphin research. Although Terrell and his team attempt to stonewall Mahoney, he finds out the truth about Fa and Bea and threatens to publish his findings. To prevent this, Terrell agrees with DeMilo to reveal his progress to the Foundation board of directors, and travels to the mainland for a press conference. Once he and Maggie are there, the press conference is mysteriously cancelled, and Fa and Bea are stolen from the island. After the dolphins are kidnapped, Mahoney reveals that the Franklin Institute is planning to further train the dolphins to carry out a political assassination, using a magnetic limpet mine to kill the President of the United States. One of Terrell's team, David, is revealed to have been an undercover operative of the Institute, and is helping them train the dolphins for the assassination attempt. Fa escapes and returns to the Terrells, and the conspirators set Bea off to place the mine on the President's yacht. Realizing what is happening, Jake tells Fa to stop Bea; Fa intercepts Bea, and redirects her to place the mine on the conspirators' boat, which is destroyed in the ensuing explosion, killing David and most of the board. Fa and Bea return to the Terrells, but as DeMilo approaches the island in a seaplane, Jake instructs Fa and Bea to escape and live free in the ocean. Fa is reluctant