The tone of science fictionfilms is often a guide to the tone of the times the film was made: other worlds and species are viewed in turn as wonderful, terrifying, threatening, incomprehensible, and childishly benign.
... have a female householder with no husband present, and 37.6% are non-families. 27.7% of all households are made up of individuals and 14.5% have someone living alone who ...