There's relatively little film that survived from WWI. At the time, the emulsion was coated onto a relatively unstable (and dangerously flammable) nitrate-based cellulose film base that did not weather the effects of time well. As a result, the same footage tends to get used over and over again for various historically based shows. The shot of "the Baron" with the dog is nearly a classic. Considering that this well could have been shot by a hand cranked camera, it's slightly amazing that it exists at all.