Recently watched Passchendaele the movie, its made from the point of view of the Canadian soliders that went there. It has some cracking scenes from the trenches and battle but I believe its spoilt by the love story back home that consumes the whole movie! It is better to be a war movie than a love story grr.
Here we see Canadian troops at Passchendaele what can only be described as a mud bath. Taking the injured troops took a real effort across virtually unwalkable paths. In WW1 horses were still used to move heavy artillary, injured about.