The Concept of Intelligent Characters in Quotes

In bad Hollywood writing, characters who are described as smart will nonetheless make stupid mistakes. Bad science fiction book genius may have invented some gadget and speak in techno babble. If it's a movie or TV show, then intelligent in quote characters, usually villains, have British accents. Jane is more likely to be described as inventing gadgets, but she's less likely to recite a correct blueprint for a gadget.