When challenged with a way to describe why her sister doesn't talk like the rest of us, a young girl made the analogy to Ariel from The Little Mermaid. Her sister has childhood apraxia of speech (CAS) which makes it difficult for her to put sounds and words together into a smooth word or sentence. So she described her sister as Ariel since she understands everything that you are saying to her, but she just can't talk back to you. What a great way to describe a difficult disorder to children and make them understand.
When the movie Frozen arrived in the movie theater, there were parallels made to autism. Elsa has something that she must hide from society since it is not "normal" or may seem weird. For those that have sensory processing difficulties due to autism, they may have what some consider "odd" behaviors that they need to hide. Elsa would rather hide away and be able to be herself than conform to those around her much like those with autism who would like to be able to thrive in their own environment the way that they respond best.
These are just two examples of how we relate everyday occurrences with fictional characters. What Disney character do you relate to?