Monster High, the animated movie, is based on the Monster High doll franchise created by Mattel and launched in July 2010.
The characters are inspired by monster movies, sci-fi horror, thriller fiction, and various creatures thus distinguishing them from most other fashion dolls on the market.
The Monster High franchise includes many consumer products such as stationery, bags, key chains, various toys, play sets, video games, TV specials, a web series, and direct to DVD movies. Lisi Harrison is the author of the Monster High books. The characters are depicted as being either related to or as offspring of famous monsters such as Dracula, Frankenstein’s Monster, the Mummy, Medusa, the Creature from the Black Lagoon, the Phantom of the Opera, Zombies and more.
The franchise is distinctive due to its extensive use of humorous horror puns such as referring to juvenile female characters as “ghouls” rather than girls.