The Himalayan vistas viewed from the world's tallest mountain on an IMAX screen 'seven storeys' high is breathtaking. Cameraman Rob Schauer and the rest of the team clearly went through hell: the crew (including the son of Sherpa Tenzing who accompanied Hillary on the first ascent) was required to cart more than 100lb of IMAX stock across crevasses and over unpredictably ice boulders. They witnessed the misfortune of eight climbers from another expedition perishing on the same slopes. And then there was the frost bite and altitude sickness. George Harrison provides the swirling soundtrack, Liam Neeson the sincere commentary.