This Danish 1916 movie features many elements of modern disaster movies (sans sound and colour), enriched by a thick religious and social overlays. Although the obvious religious parable felt seemingly strong, the underlying social commentary to me felt even stronger. Smart choice of using a natural disaster over the then raging world war helps with the dynamics of the narrative. This brings us to the special effect, which were surprisingly convincing, considering the age. Elements of natural acting over the then popular theatrical one were also a pleasant surprise. All in all, an impressive early effort.