The Challenge is a 1938 British drama film directed by Milton Rosmer and Luis Trenker and starring Robert Douglas and Luis Trenker. The film is about the first successful ascent of the Matterhorn in 1865 by Edward Whymper. The film is a remake of Struggle for the Matterhorn German Der Kampf ums Matterhorn in which Trenker acted in 1928.
Source: Wikipedia