Mountains on Fire

Mountains on Fire (Berge in Flammen) is a 1931 German war film directed by Karl Hartl and Luis Trenker and starring Trenker, Lissy Arna and Luigi Serventi. The film was based on Luis Trenker's novel of the same title, partly based on his own experiences. Separate French and English-language productions were also made.

Synopsis
Shortly before the First World War, an Italian and an Austrian take part in a mountaineering expedition together. Not long afterwards they find themselves fighting on different sides. The plot also features references to the mines on the Italian front.

Cast

 * Luis Trenker as Florian Dimai
 * Lissy Arna as Pia, his wife
 * Luigi Serventi as Arthur Franchini, his friend
 * Claus Clausen as Leutnant (lieutenant) Kall
 * Erika Dannhoff
 * Paul Graetz
 * Michael von Newlinsky
 * Emmerich Albert as Tyrolean mountain guide
 * Luis Gerold as Tyrolean mountain guide
 * Hans Jamnig as Tyrolean mountain guide
 * Hugo Lehner as Tyrolean mountain guide
 * Roland von Rossi as Tyrolean mountain guide