US actor Austin Butler, 32, said he had to struggle with extreme heat during his first week of filming the film “Dune: Part 2” Temperatures at the filming location were 110 degrees Fahrenheit (approx. 43 degrees Celsius) Director Denis Villeneuve also spoke of a “very physically demanding” shoot under ‘very tough conditions’ The film was introduced to Korean audiences on Wednesday, with Zendaya once again the center of attention in a cyborg suit.