Fantasy Short movie Troll-bridge: a Terry Pratchett Discworld short movie (video). January 24, 2021 ColonelFrog Discworld, Terry Pratchett, Troll-bridge 0 min read Troll-bridge is the Terry Pratchett Discworld short movie based on Cohen the Barbarian, from Snowgum Films. An aging barbarian and his smart-ass talking horse. What could go wrong? The film is rather good, too. Troll-bridge: a Terry Pratchett Discworld short movie (video).