James Cameron's Avatar’ success has prompted the fans to learn Na’vi language spoken in the film.

Almost a total of 12000 Australians are using www.learnnavi.org to master the 1000 listed words.

US designer Sebastian Wolff who has set up the site said he had “vastly underestimated interest” in the language.

“Having anticipated no more than a few hundred visitors, the website is getting 15,000 daily visitors, 70 per cent of them new,” he said.