VENICE, Italy - Jake Gyllenhaal and Jason Clarke lead the cast but the mountain is the star of “Everest,” a high-altitude thriller that opened the Venice Film Festival on Wednesday.
Based on real events, Baltasar Kormakur’s film follows two expeditions caught in a blizzard while attempting to reach the summit in 1996.
Shot in 3-D and on the super-sized IMAX format, the film is a nerve-shredding, life-or-death battle between the mountain and the wind-whipped, snow-blinded, oxygen-deprived climbers. Some live and some die, but as one character notes, “the last word always belongs to the mountain.”
“Part of telling the story is telling it in the elements,” added Mr. Kormakur, who took his cast high into the Himalayas and imported snow to England’s Pinewood Studios in his quest for authenticity. “The story happened in the elements.”
Mr. Kormakur, director of the Icelandic indie classic “101 Reykjavik” and the Hollywood action comedy “2 Guns,” said growing up in sub-Arctic Iceland made him especially suited for the job.
“I trained for this film every day when I went to school, basically in a blizzard, as a kid,” he told reporters Wednesday ahead of the film’s red carpet premiere.
The film focuses on New Zealand climber Rob Hall (Mr. Clarke) and American mountaineer Scott Fischer (Mr. Gyllenhaal), who pioneered commercial expeditions on Everest. Both are depicted as passionate climbers who, perhaps unwittingly, unleashed a lethal combination of money, hubris and nature.
The film is implicitly critical of the Everest climbing industry, which has seen several thousand people climb the mountain in the last two decades and more than 250 die. But Mr. Kormakur says he understands the “almost animalistic” desire to pit oneself against the peak.
“In some ways you get the most real version of yourself,” he said. “You get to the core of who you are.”
Written by William Nicholson, the co-writer of “Gladiator,” and Simon Beaufoy, whose scripts include endurance saga “127 Hours,” the film brutally depicts the effects of high altitude on the body.
Mr. Kormakur put his cast through grueling paces, filming in Italy’s Dolomites and near Everest base camp, more than 17,000 feet above sea level.
“People started getting really sick at that point,” Mr. Kormakur said. “And we had to evacuate people with a helicopter pretty quickly.”
“I think Jake worded it very well when he said there’s a difference between pain and injury. I put them through a lot of pain, but no injury,” he said.
Josh Brolin, who plays a member of Hall’s expedition, said the pain and deprivation forged camaraderie among the cast - though they initially didn’t know what they were in for.
“A lot of directors say, we want to do this for real, we want to bring you in the elements, we want it to be you against nature,” he said. “And most of them aren’t telling the truth.”
“Everest” - which features Keira Knightley and Emily Watson in supporting roles - is not among the 21 films competing for prizes at the festival, which runs to Sept. 12.
But the opening-night slot carries considerable cachet, and pressure. The last two Venice openers - “Gravity” in 2013 and “Birdman” in 2014 - went on to multiple Academy Awards.
Early reviews of “Everest” were largely positive. The Hollywood Reporter called it “gripping and immersive,” while London’s Time Out praised the “astonishing” craft of Mr. Kormakur’s 3-D spectacular. The film also has a tragic timeliness, opening months after an April earthquake in Nepal killed almost 9,000 people, including 19 mountaineers.
The 1996 Everest disaster has been the subject of several books, including John Krakauer’s “Into Thin Air,” and debate still rages about whether mistakes were made by Hall and Fischer.
Mr. Gyllenhaal said depicting real people and events brought “tremendous responsibility.” He said Scott Fischer’s children had contacted him, “a bit worried about how their father might be portrayed.”
“It was actually a beautiful thing to sit down with the two of them and hear who their father was to them,” Mr. Gyllenhaal said.
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