A documentary that follows Dr. Penny Patterson's current scientific study of Koko, a gorilla who communicates through American Sign Language.

---

Main Cast: Penny Patterson, Koko, Saul Kitchener, Carl Pribram, Roger Fouts

Director: Barbet Schroeder

Writer:

Editors: Dominique Auvray, Denise de Casabianca

Cinematographer: Néstor Almendros

---

Popular Double Features