But it wasn't just Alien. Remember the glowing neon-green blood from the Predator franchise? That wasn't a post-production effect -- Predator blood is a simple combination of K-Y Jelly and the liquid in glow sticks. The glow faded fast, so they kept cases of K-Y on hand to keep that movie magic rolling. And in John Carpenter's The Thing, virtually every monster was slathered in K-Y, giving the film its unsettlingly wet look. If something in a movie is gooey, slimy, and terrifying, it's probably K-Y. Hey look, K-Y -- a new tagline for your commercials! You can thank us later. Via cash.
K-Y is also an essential product in the makeup artist's kit, since it makes fake wounds look fresh and removes expensive latex prosthetics without damaging them.
New Line Cinema
Or the things they're attached to.
K-Y is so ubiquitous on movie sets that it's even used when common sense would dictate otherwise. Near the end of Titanic, Kate Winslet's character spits in her evil fiance's face. They went through so many takes that Winslet's mouth dried out, and rather than just give her a bottle of water, they put K-Y on her tongue and had her spit that all over those perfectly arched, villainous eyebrows instead.
If spitting sex lube onto Billy Zane was not already a bizarre niche fetish, it sure as hell is now.