Arthur Christmas
Aardman Animations might not be the powerhouse that Disney and Pixar are, but they continue to carry on the tradition of hiding past references to movies in their cannon throughout new movies they produce. This must be like a right of passage or badge of honor for movie creators.
In Arthur Christmas if you look closely, and down, you will see a tiny adorable squeak toy. That’s no regular squeak toy though- it’s Shaun the Sheep! Another character to emerge from Aardman Animations. Who knew that a stop-motion clay animation little sheep could be so dang cute.