If there is one overall generalization that can be placed upon the science fiction genre of film, it’s that alien life forms are largely humanoid in form. 2 arms, 2 legs, torso. Furry and short like Ewoks, Furry and big like Wookies. And if they’re not, they are a bastardization of Earth creatures a la Starship Troopers, or just kind of lame, like Star Trek‘s troublesome Tribbles. Really, the only franchise that has ever truly delivered something believably not of this world is Alien. And there isn’t another franchise that even comes close.
