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.
... with them, 70.4% are married couples living together, 9.9% have a female householder with no husband present, and 16.2% are non-families. 12.0% of all households are ...