The Conquest of Everest (1954)

From Posteropoplis:

Director: George Lowe
Actors: Sir Edmund Hillary, Tenzing Norgay, Meredith Edwards (narrator)
Studio: United Artists
Documentary about the first expedition to reach the top of Mount Everest.

I’ve been told that Sir Edmund Hillary did all of his stunt work on The Conquest of Everest. No CGI for this legend of mountaineering.

+ Source: The Conquest of Everest (1954) :: Posteropoplis