"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."

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

"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."

"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."

"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."

"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"

"Josh Brolin - Beck Weathers"

"John Hawkes - Doug Hansen"

"Sam Worthington - Guy Cotter"

"Robin Wright - Peach Weathers"

"Michael Kelly - Jon Krakauer"

"Keira Knightley - Jan Arnold"

"Emily Watson - Helen Wilton"

"Thomas Wright - Michael Groom"

"Martin Henderson - Andy "Harold" Harris"

"Elizabeth Debicki - Dr. Caroline Mackenzie"

"Naoko Mori - Yasuko Namba"

"Clive Standen - Ed Viesturs"

"Vanessa Kirby - Sandy Hill"

"Tom Goodman-Hill - Neal Beidleman"

"Ingvar Eggert Sigurðsson - Anatoli Boukreev"

"Charlotte Bøving - Lene Gammelgaard"

"Micah Hauptman - David Breashears"

"Chris Reilly - Klev Schoening"

"Chike Chan - Makalu Gau"

"Vijay Lama - Lt. Col. Madan Khatri Chhetri"

"Mark Derwin - Lou Kasischke"

"Intelligence doesn't threaten me. Stupidity does."

"The Mountain Will Decide"

"Hold Your Breath"

"This December. Fear will Fall. Courage will Rise."

"Roshan Seth – Colonel Amir Salim"

"Steve Le Marquand – Cyril Bench"

"Ben Mendelsohn – Malcolm Bench"

"Alexander Siddig – Kareem Nazir"

"Nicholas Lea – Tom McLaren"

"Stuart Wilson – Royce Garrett"

"Temuera Morrison – Major Rasul"

"Izabella Scorupco – Monique Aubertine"

"Scott Glenn – Montgomery Wick"

"Robin Tunney – Annie Garrett"

"Bill Paxton – Elliot Vaughn"

"Chris O'Donnell – Peter Garrett"

"Kareem Nazir: All men die, my friend. But Allah says its what we do before we die, that counts."