Incubus

Incubus (Esperanto: Inkubo) is a 1966 black-and-white American horror film filmed entirely in the constructed language Esperanto. It was directed by Leslie Stevens, creator of The Outer Limits, and stars William Shatner, shortly before he would begin his work on Star Trek. The film's cinematography was by Conrad Hall, who went on to win three Academy Awards for his work on the films Butch Cassidy and the Sundance Kid, American Beauty and Road to Perdition. The use of Esperanto was intended to create an eerie, other-worldly feeling, and the director has prohibited dubbing into other languages, however on the Special Features section of the DVD the makers claim that Esperanto was used because of perceived greater international sales. Incubus was the second feature film primarily using Esperanto ever made. The first, Angoroj ("Agonies") appeared in 1964, two years earlier. Esperanto speakers are generally disappointed by the pronunciation of the language by the cast of Incubus. The film was considered to be lost for many years, until a copy was found in Paris in 1996.