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.
... female householder with no husband present, and 28.1% are non-families. 24.0% of all households are made up of individuals and 11.7% have someone living alone who is 65 ...