The overwhelming theme in John Hughes' best movies is loneliness. More than that....feeling ignored and insignificant. As Ally Sheedy says in "The Breakfast Club," about how precisely her parents abuse her...."they ignore me."
Cameron famously stares into the painting at the museum while his best friend makes out with the pretty girl.
Cameron sees that the girl in the painting is crying or wailing when you look closer...even with her mother there with her holding her hand. This is parallel…