EverestScaling Mount Everest is an amazing feat. But it's sort of meaningless if you don't survive the trip back down the mountain.

The first trailer for "Everest" features some breathtaking vistas as two teams of climbers — including Josh Brolin, Jason Clarke, Jake Gyllenhaal, John Hawkes, and Sam Worthington — ascend to the peak of Everest. It's a tough, grueling trek, with plenty of dangerous moments, but they seem to triumph and bond on the way up. Then, the real battle begins, as a terrible storm threatens their lives on the harrowing journey back.

The movie is based on the true story of the 1996 Mount Everest disaster, in which eight people died. The footage looks incredible, and the cast list is very impressive (the movie also features Keira Knightley, Robin Wright, and Emily Watson). Director Baltasar Kormákur shot the film in real conditions and in IMAX 3D so we can expect some jaw-dropping scenery.

"Everest" opens in theaters September 18.

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