Eleven pigs played Albert.
At approximately 00:15:05, Albert the pig is briefly near a crayon drawing of the words "SOME PIG". It's a reference to the book "Charlotte's Web," in which the words "SOME PIG" are used to distinguish the uniqueness of Wilbur, the main character.
American Humane Association monitored the animal action. No animals were harmed in the making of this film. AHA 01709