Character mistake: Baymax, a healthcare robot, says that his programming includes a database of 10,000 symptoms of disease. Yet, he issues the warning, "After eating, wait one hour before swimming." That warning, often given by parents to their children, has no basis in medical fact. People who do not get cramps after eating will not develop cramps by going swimming after eating: http://www.snopes.com/oldwives/hourwait.asp.
Character mistake: Olson discovers a "microchip blocking the self-assessment program" and says, "it's a worm"! It is not. "Computer worm" is a type of malware that propagates over a computer network. What Olson discovers is an act of sabotage of malicious nature, but definitely not a worm. (00:25:39)