Häxan, aka Witchcraft Through The Ages, is a Swedish-Danish documentary made in 1922 that is super-stylized, often hysterically theatrical, and a fascinating curio of its era. Director Benjamin Christensen gives an overview on demons and witches in Medieval times, not often (to me, anyway) clear in his distinction between fact and fiction, such that Häxan feels less like a documentary (admittedly the form was young, Nanook of the North having come out in the same year) and more like a horror-fantasia. Satan and witches and other assorted demons prance around in front of the static camera with varying colour tints applied to the Black & White footage and lots of special effects which evoke the pioneer of the form, Georges Méliès. The director himself plays Satan in the film, an image and performance that is difficult to forget. (He also plays Jesus Christ and simply himself in the film.) And the film has a field day with Inquisitor torture devices and other acts of human barbarism in medieval times.
The final product is surprisingly entertaining, gruesome, grotesque, and frankly, well ahead of its time; albeit it is difficult to put yourself into the mindset of an audience, either domestic or foreign, taking it upon its initial release. However, it is certainly enough that The Criterion Collection obtained the film and did a full restoration in 2001.