In the realm of fantasy, there is linguist J. Tolkien and the various languages he created for the various races in Lord of the Rings. He invented several styles of writing as well. Linguist M. James Cameron did a search and finally hired liguist Paul Frommer to create the Na'vi language for the movie Avatar. Frommer has continued to work on the language even after the movie was finished. He hopes it will develop a community of speakers. David J.