Chicago is not about a mental disorder, but the movie features a character, Mr. Cellophane, who fits the description of Avoidant Personality (AVPD). The clip above features Mr. Cellophane, the husband of Roxie Hart, who feels like he is invisible because no one even notices him.

This scene is helpful for people to get inside the mind of someone that has Avoidance, as well as other mental conditions.