Dain is survived by his wife, Nancy, and two children. His village, Yakel, on Tanna island, is in a traditional two-week mourning period.
Jimmy Joseph, the cultural director for Tanna island, said Dain was quiet, humble and respected in Yakel, where he had chosen to remain even after achieving some fame in the movie. He said Dain never drank or smoke.
People in the village typically choose to live as they have for centuries, in simple thatch huts and wearing nothing but grass skirts or a penis shield called a nambas. They raise crops and pigs, and observe a traditional way of life known as kastom.
But the village isn't completely isolated from modern life. When villagers make the trek to the island's main town to sell the coffee beans they've grown or buy rice, they usually wear clothes. Some have cellphones, which they charge with small solar panels.
When Australia-based Butler and Bentley Dean decided to make the movie, loosely based on a true story, Butler said they quickly realised the village elders would be doing the casting. He said Dain looked too old for the role with his full beard, but 10 minutes later he'd shaved it off at their request.
Butler said he and Dean planned to travel to Yakel at the end of the mourning period to join the village in celebrating Dain's life.
"I was totally devastated. He was so fit and young and gorgeous," Butler said. "His wife is fabulous and the kids are great. He was a great example of how you can live a totally different type of life, and still be completely happy."
Location producer Janita Suter, who lived in Yakel for seven months during filming, said if there was an award for most improved actor, it would have to go to Dain. She didn't think he'd even seen a movie before acting in one.
When they travelled to Venice for the film festival, Suter was in her apartment when the chandelier and ceiling started shaking.
It was Dain and the other villagers in the room above, stomping their feet in a traditional dance.
"He was a really proud ambassador for his people," she said. "It's a real loss."
Dain had been staying in Port Vila for a couple of months as he tried to get a temporary visa to head to Australia and earn some money picking fruit.
Suter said a doctor had explained that Dain got an infection in his leg that he didn't treat and by the time he was taken to the hospital he was unconscious and likely in septic shock.
Butler said he hoped there may be some way to get better information to people in Vanuatu about the risks of infections, and that Dain's death could act as a catalyst.
- AP
