This is all about how the professional trainers got the animals to do what you saw in the movie, "Charlotte's Web." Despite their intelligence (the trainers and the animals), it was still a big chore because the fact that is stressed more than anything else here is that animals are individuals, too - like humans. In other words, some animals respond to certain things better than others; some are good in learning one thing and not good in another, and all animals have good and bad days.
Two things the trainers provide: a lot of love and a lot of patience. They say the animals know that, too, and respond best to that kind of treatment.
In this DVD bonus feature are some of the tricks that the trainers use, such as sound effects and - always - treats for every act performed. These animals, especially pigs, love to eat!