The era in which the Invasion of the Body Snatchers was released was a period that was very crucial in terms of the political scenario as well as the general atmosphere of America. It was the time period right after the world wars and also a time when there were numerous claims made of UFO sightings. The result of this was a film, that perhaps changed the way Science fictions films were to be made in Hollywood altogether; a certain respectability was brought to this genre by the film. The film is about a town in California that is under an attack by aliens from outer space, a certain species of pods that take the place of humans and then rage havoc in the city. The film is now considered as one of the greatest classics in two major genres of films, science fictions as well as horrors. The film however is not as superficial as the story might seem to be.

There are several different theories that have been floating ever since the film’s release. In fact some modern critics and reviewers claim that the symbol of the attacking aliens is actually a symbol for some kind of disease such as AIDS that threatens the very survival of humanity. Whatever might be the deeper meaning of the film, there surely are several layers to them. Nevertheless, the film with its magnificent veteran cast is one of the best films of the Post-war era of Hollywood.