'Stitch Head' Gringo-Films-Senator-Film-Produktion Gringo Films does not sound like the kind of company that muscles its way into the global animation business. The Cologne-based outfit is literally a mom-and-pop shop, run by partners Steve Hudson and Sonja Ewers. When they optioned Stitch Head a decade ago, after listening to the audiobook version of Guy Bass' children's book on a family car ride, their plan was charmingly modest: Adapt Bass' gothic tale, about a distracted mad professor who zaps new creatures into life only to immediately abandon them, as a classic European co-production.