Compare two science fiction films which use different themes

A genre normally has a set list of possible themes in there narratives. Science fiction has a few strong themes running throughout the history of this recently popular genre; science fiction wasn’t popularized until the 1950’s. Most science fiction tales have a prophetic nature and are often set in a future time. They are usually visualized through fanciful settings and advanced technology gadgets, scientific developments or by amazing special effects. A strong theme is …

…of the film, unlike Independence Day this film does not try to increase the patriotism and hope of the audience. If it was then the replicants would be evil and all would be destroyed, the society would not be so dark and no struggling between the social class’. Bladerunner is a warning about how the future could turn out if capitalism and technological advances became the desire to which many people would want to create.