Here are some of the behind the VFX from the movie Everest. Thanks to 
the wonders of CGI it's actually now possible to 'bring the mountain to 
Mohamed', so to speak. But tearing away the realistic backdrops of snowy
 mountains we get to see that for most of the scenes the snow was 
actually once green.
Here are some VFX reels from the amazing VFX companies; 'RVX', 'One Of 
Us' and 'Framework'.
To video
To video











