<P> In September 2005, it was announced that director David Slade had signed on to 30 Days of Night, which would be distributed by Columbia Pictures mainly in North America and Mandate Pictures in international territories . In March 2006, Slade revealed that screenwriter Brian Nelson, who wrote the screenplay for Slade's previous film Hard Candy, was writing a new draft of the 30 Days of Night script, replacing Beattie's draft . The director said that filming would begin in summer 2006 in Alaska and New Zealand . </P> <P> In June 2006, it was announced that Josh Hartnett was cast as the husband of the married couple that serves as the town's sheriff team . Some criticized the choice because the main character (Eben Olemaun, with the last name changed to Oleson for the motion picture adaption) was originally Inuit in the comics . Melissa George joined the 30 Days of Night cast as the wife of Hartnett's character . Danny Huston joined the cast as the leader of the vampires . </P> <P> Filming did not begin immediately, but in a September 2006 interview, executive producer Mike Richardson said that 30 Days of Night would be shot on 35 mm film, though there had been discussion to shoot the film on Genesis . In an interview prior to filming, Slade explained that the illustrations of the graphic novel's illustrator, Ben Templesmith, would be reflected in production design . Slade also considered Nelson's draft to be the most faithful to the graphic novel . He also stated his intention to make a "scary vampire film", of which he didn't think there were many . "The rest of them, they fall into all kinds of traps . We're going to try to do our best...and one of the ways we have to do it is be more naturalistic than the graphic novel, because it's very over-the - top," said Slade . There was also concern expressed that while the vampires needed to communicate, talking might lessen the effect . To counter this, a fictional vampire language, with click consonants, was constructed with the help of a professor of linguistics and the nearby University of Auckland . Slade explained "we designed this really simple language that didn't sound like any particular accent that you would be aware of, that was based around really simple actions, eating, hunting, yes, no, really basic, because that's what vampires do ." </P> <P> By February 2007, the production phase was completed, and a rough cut of the film was prepared . In April, composer Brian Reitzell was hired to score the film . </P>

What language do vampires speak in 30 days of night