based on novel or book world war i mountain mountaineer europe climbing mountain climbing alps mountains mountaineering mountain pass european eurasia rock climbing climber dolomiten dolomites 1930s alpinism alpine climbing climb 1900s mountain guide bergfilm alpinist alpinismo alpen alpes war 20th century fiction fictional alpinisme eurasian sound film alps mountain climber mountainclimbing rockclimbing mountains mountain film alpi european cinema mountain drama fiction film german filmmaker ficcion alpine italian alpinism shot on film ficción alps mountains range mountain terrain first world war alpine guide alps mountain range early 20th century alpinismus northern hemisphere berg col 1931