Styling itself as the “oldest short film festival in the world” as well as, rather less memorably, the “largest festival in North-Rhine Westphalia,” the annual gathering of filmmakers and producers at Oberhausen offers the latest opportunity to reconsider questions that have shadowed the festival almost since its inception: what do we mean by short film, and how does it relate to the wider fields of cinema and contemporary art? As the classification has been subsumed into “moving image” and migrated online and into the gallery, should we now think of it as a testing ground for approaches that might percolate into mainstream film-making, another channel through which artists might express ideas not confined to a single medium, or a discrete art form with its own histories and non-transferable stylistic characteristics? In proposing rather vaguely that it might be “the experimental field on which future film languages are formed,” the festival’s own literature betrays some of the anxieties arising from the attempt to corral proliferating styles, formats, and economic networks into an overextended category. First impressions of the International Competition were that its curators were perhaps too eager to accommodate all these possible interpretations, and several more besides. Entries were divided …