The 1966 film, Incubus, was the first American movie exclusively in this language.
- Esperanto
- Hebrew
- Hindi
- Navaho
The 1966 film, Incubus, was the first American movie exclusively in this language.
Esperanto. The film was a black-and-white horror film starring William Shatner. The director barred dubbing it into other languages. Esperanto was used because the producer thought it would generate more international sales. Esperanto is a language constructed so that it can be used internationally. The Polish-Jewish ophthalmologist L. L. Zamenhof published the first book detailing Esperanto, Unua Libro, in Warsaw in 1887.