I found the following snippet on Wikipedia, in the article about the Wensleydale cheese:
Wallace and Gromit
In the 1990s, sales had fallen so low that production was at risk of being suspended. However, the popular Wallace and Gromit animated shorts A Grand Day Out and A Close Shave had the main character Wallace mention Wensleydale as a particularly favourite cheese. Animator Nick Park chose it solely because it had a good name that would be interesting to animate, unaware of the company's financial difficulties. The company contacted Aardman Animations about a licence for a special brand of "Wallace and Gromit Wensleydale", which proved to be an enormous success. When the 2005 full-length Wallace and Gromit film, Curse of the Were-Rabbit, was released, sales of Wensleydale cheeses jumped by 23%.
It's a funny world really :)
here's the full article.