Best Alien Depictions in Cinema
Whether intelligent, benevolent, horrific, or just plain weird, there's something wonderful about seeing a great alien being on screen.
Technically non-sentient aliens, but better called monsters, these hammer-headed, light-eschewing inhabitants from Pitch Black are mean mothers. They're very similar to alien Xenomorphs but have some interesting dynamics of their own. Their skin is extremely sensitive to light, they can fly as juveniles, and they eyes are so wide apart on their that they have a narrow blind spot. Pitch Black monsters have a realistic morphology, except for the fact they they evolved on a planet bathed by three relentless suns, yet they die upon contact with light. Perhaps on a dark planet, with no light, a monster like this could actually exist.
ET is otherwise known as a Child of the Green Planet or a Brodo Asogian, coming from his homeworld of Brodo Asogi. He's about one meter tall, has a long neck, and hairless brown skin. ET can using his glowing chest and fingers to command force-like powers. As far as plausible morphology goes, ET makes sense, although its hard to image how this plodding, defenseless being could survive in a natural environment.
Species 8472 hails from Fluidic Space in the Star Trek universe. With their powerful, organic, technology, long range telepathic abilities, infectious claws, and desire to clean the universe of all life but theirs, they make one of the better developed Star Trek foes. It's only fitting that their arch rivals are the Borg who, while experimenting with new transwarp technology, ripped a hole into fluidic space, introducing species 8472 to the Delta Quadrant.
Watto, chiefly portrayed in Phantom Menace, is a unforgettable alien character. He somewhat resembles a cthulu, but more directly a hybrid between a fairy and an elephant. The ill-tempered personality and impossibility of flight physics aside, Watto makes for a compelling alien morphology.
Mikey is the real alien posing as a fat Mexican illegal alien to sneak into Earth when he is stopped by Tommy Lee Jones. Resembling a humanoid crocodile, we don't know much about Mikey as he gets blasted into a cloud of goo for attacking a boarder patrol agent. Mikey's morphology is cool, and those appendages on his back make you wonder.
The Brain Bug from Starship Troopers was the calculating force behind all the human's troubles. Apparently this bloated, slug-like bug would inch its way into captured territory to suck out the brains of wounded marine commanders in the hope of assimilating the strategic plans of the humans and staying one step ahead. This is an altogether not inconceivable evolutionary design, although as a lone organism the slug's lack of appendages does raise the question of how it will action on all the information its digests. Perhaps there may be ant-like colonies of creatures on other planets with a single "brain bug" at the helm.
Ballchinians are a tongue-in-check alien race from Men In Black with funny-looking afro hair, a squished flash, droopy checks, and of course, a set of testicles hanging from their chins. Woe be on to the unfortunate Ballchinian caught in a fist-fight. Funny as hell on the silver-screen? Yes! Evolutionarily feasible? Not a chance in hell.