"Caroline MacKenzie: From a medical standpoint getting you to the top of Everest is really about oxygen. And the lack of it. To give you the best chance of summiting you need to prepare your bodies for the thin air up there."

"Jason Clarke - Rob Hall"

"Jake Gyllenhaal - Scott Fischer"

"Helen Wilton: That's the cooking tent, and over there is the toilet. It's a little bit drafty, but just remember that when the wind gets up here, you've got the same view that George Everest did."

"Emily Watson - Helen Wilton"

"Doug Hansen: I'm climbing Mount Everest... because I can... because to be able to climb that high and see that kind of beauty that nobody ever sees, it'd be a crime not to."

"Josh Brolin - Beck Weathers"

"Clive Standen - Ed Viesturs"

"Human beings simply aren't built to function at the cruising altitude of a 747. Okay, once we get above here, above the South Col, our bodies will be literally dying. And I mean literally dying. It's not called the Death Zone for nothing."

"Head down, one step at a time. That's how it is done."

"Sit down man, acclimatize."

"Everest is another beast altogether."

"Can you just listen up? Guys? We got 2,000 feet, 600 vertical meters to Camp Four. It's roped all the way, so I know you can make it. Now, once we get to the yellow band we're gonna regroup, put on the masks, turn on the gas. Make sense?"

"You my friends are following in the very footsteps of history..."

"You know what they say, man. It's not the altitude, it's the attitude."

"Something beyond the power of words to describe."

"Title Card: Edmund Hillary and Tenzing Norgay became the first climbers to summit Everest. Over the next 40 years, only top professional climbers attempted the same feat. One in four died."

"1992: New Zealander Rob Hall pioneered the concept of commercial guiding on Everest for amateur climbers. Over the next four years his team, Adventure Consultants, successfully led 19 clients to summit without a single fatality."

"Anatoli Boukreev: We don't need competition between people. There is competition between every person and this mountain. The last word always belongs to the mountain."

"Thomas Wright - Michael Groom"

"Vanessa Kirby - Sandy Hill"

"1996: Other commercial operators follow Rob Hall's lead, including Scott Fischer's Mountain Madness. More than 20 expeditions compete to summit Everest in the same two week window."

"Eddie Albert - The President"

"Chris Mulkey - Gary Finch"

"Larry Gelman - Mr. Webber"

"George Wendt - Charlie Prince"

"David Patrick Kelly - Tommy Ray Glatman"

"Cory “Bumper” Yothers - Buddy"

"Enter a world beyond your wildest imagination where anything can happen."

"Kate Capshaw - Jane DeVries"

"Who in hell has peace of mind..?"

"He's the first mind traveler but can he survive the demons of nightmare warfare?"

"Alex Gardner has an extraordinary gift. To keep it may cost him his life..."

"It takes an extraordinary adventurer to enter the..."

"Redmond Gleeson - Snead"

"Alex Gardner has an extraordinary gift. The government wants it...The scientists want it... To keep it may cost him his life..."

"Dennis Quaid - Alex Gardner"

"Close your eyes and the adventure begins."

"Nice place you got here. Who's your decorator? Darth Vader?"

"Hello, Mr. President. Alex, what a surprise. I get to kill two for the price of one!"

"In this world, Alex, you're nothing. And me, I'm God."

"[in the dream, to zombies] Help me, Help me! There he is! He's the one who pushed the button. He did this to you! He did this to you! He did this to you!"

"Eric Gold - Tommy Ray's father"

"Max von Sydow - Dr. Paul Novotny"

"[in the dream, Alex turns into Tommy's father] Daddy? Daddy, I'm sorry!"

"Christopher Plummer - Bob Blair"

"Peter Jason - Roy Babcock"

"Frank Puglia — Harry 'Hardway' Lockett"

"Grant Withers — Capt. Bill Street"

"Marjorie Reynolds — Roberta 'Bobbie' Logan"