Here are ten rules for making a movie monster that will leave audiences screaming in the aisles…
For every genuinely menacing screen monster, there are at least a dozen unintentionally funny, shambling travesties. For every Giger-designed Alien, there's a legion of creatures like the rubbery octopus-type thing from Yog: Monster From Space, or the man in a bear suit from Robot Monster.
Here, then, is the Den Of Geek guide to creating a scary movie monster, and a few examples of the pitfalls you should avoid.
A lack of eyes is scary
Designed by H.R. Giger, the titular xenomorph from 1979's Alien is arguably one of the most disturbing creatures ever to grace the big screen, quite possibly due to its apparent lack of eyes. And while Giger's monster has suffered from over-exposure in recent years (not to mention its appearance in the woeful Aliens Vs Predator movies), its original incarnation is still an iconic design.
Equally worthy of note is the terrifying Pale Man from Pan's Labyrinth, a hairless monstrosity that, while not strictly speaking eyeless, was made all the more unnerving by the fact that its eyes were located on the palms of its hands. Once seen, it's a creature that's hard to cleanse from your mind.
Inanimate objects definitely aren't scary
This is the number one, absolute cardinal rule: keep your monster under the cover of darkness for as long as you possibly can.
Spielberg kept his unconvincing rubber shark submerged for much of the duration of Jaws, while Ridley Scott was shrewd enough to recognise that, if you saw a full frontal shot of his otherwise terrifying monster in Alien, you'd immediately realise it was a mere man in a suit.
Even Matt Reeves, with all the 21st century computer trickery at his disposal for Cloverfield, was wise enough to keep his weird Large Scale Aggressor under cover of darkness for much of the film.
Darkness covers a multitude of sins. And in any case, the threat of something terrible is infinitely more frightening than the sight of the terrible thing itself. Just think how scary 1957's The Giant Claw could have been had it kept its vulture-like monster in the dark instead of fully exposed...