EntertainmentMoviesAction MoviesDune 2Dune 2 stars became “absolutely fluent” in the Fremen’s fictional language, says director Denis VilleneuveWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. EntertainmentMoviesAction MoviesDune 2Dune 2 stars became “absolutely fluent” in the Fremen’s fictional language, says director Denis VilleneuveWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. (Image credit: Warner Bros) Dune: Part Two director Denis Villeneuve says he made several of its stars go to “Fremen school” to familiarize them with the Arrakis natives' fictional language. “I’m not joking,” the filmmaker, who enlisted the help of linguist David J. Peterson, inventor of Game of Thrones' Dothraki lingo, explained in a …