One of the properties Netflix developed for The Witcher’s franchise is a prequel following Geralt’s mentor, Vesemir. This prequel is not a live-action show but instead an anime movie from the studios behind The Legend of Korra and Voltron: Legendary Defender. The Witcher showrunner, Lauren Schmidt Hissrich, is involved with the anime movie, which is confirmed to be canon to the main live-action show. Details on The Witcher: Nightmare of the Wolf are otherwise quite scarce, but that is starting to change now. During WitcherCon, Netflix revealed the first bits of footage from The Witcher: Nightmare of the Wolf as part of an official date announcement video. The teaser video features a young Vesemir and teases the battle that he’ll face in the movie. […] -Screenrant.com
The film serves as a spin-off of the Netflix series The Witcher.[3] It focuses on the origin story of Geralt’s mentor and fellow witcher Vesemir.[4]
-wikipedia
Filmen The Witcher: Nightmare of the Wolf har premiär på Netflix den 23 augusti.