According to Pieatorium, Evil Kitty was The Green Goblin's sidekick until she heard that The Green Goblin called her a sidekick.  She then whispered something into The Green Goblin's ear that made him cry uncontrollably for three days and nights.

BartonFink, unfortunate enough to have seen an early cut of the movie, Poseidon, tells us that Kurt Russell's death was originally more horrifying.  It was changed when the filmmakers realized that Evil Kitty's sudden appearance on the ship made no sense.

Although it might be construed as unseemly, Evil Kitty is not above campaigning to be a legitimate ruler.

After taking a tumble off of a ladder, jmcshane's hidden camera shows us that there are no accidents... only Evil Kitty's doings.

Wolfgang shows us that Evil Kitty was the original Monty Python and the Holy Grail's Sir Not-Appearing-in-this-Film but had to be sacked because her appearance at the beginning caused people to flee the theater in terror.