Factual error: In "The Bully Proof Vest" Gromit is punched through a door, leaving a perfect shape of him as a hole in the wood, including both ears. Gromit is wearing a hat which keeps his ears hidden both before and after the punch. (00:01:19)
Factual error: After the VW van hits the tree stump, steam is coming from the front of the vehicle. Those vehicles have the engine in the rear. (00:05:53)
Factual error: In the scene where Spirit's mother is giving birth to Spirit, after she has him it shows Spirit as a newborn, with teeth. Newborn horses don't have a full set of teeth. (00:04:23)