Question: What is the title of a 2002 American animated science fiction comedy-drama film with an illegally-made, genetically-engineered, extraterrestrial lifeform resembling a blue koala and his adopter and best friend who is also its primary protagonist? 
Sentence (from "Stitch (Disney)"): An illegally-made, genetically-engineered, extraterrestrial lifeform resembling a blue koala, he is one of the franchise's two title characters, alongside his adopter and best friend Lilo Pelekai, and its primary protagonist.
Relevant evidence: Yes