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.
... is both a house and a boat.
tatpurusha
There are many tatpurushas (one for each of the nominal cases, and a few others besides); in a tatpurusha, one component is ...