I ran across this detailed 'history' of dragons while channel surfing. The cgi on the video looks pretty good and the 'documentary' style was interesting with it's mix of science and myth.
I did a quick search and found a link for your enjoyment. It's a long video that runs 97 minutes and 10 seconds. There's a few screens with dragons in the mountains and ice caves that remind me of the game.
https://www.youtube.com/watch?v=8FIDeOO ... r_embedded