Directed by William Lau and written by Keith Wagner, who also provided its story and screenplay, the film is the 9th in the list of CGI-animated films and the 12 animated film overall based on the Monster High doll franchise by Mattel. The soundtrack charted on Billboard's US Kid Albums and US Soundtracks.
Plot
Cleo de Nile's father Ramses invites his daughters to attend a fancy gala in Boo York featuring the showing of the Comet Crystal and heralding the arrival of a comet from outer space. Cleo invites her boyfriend Deuce and classmates Frankie, Clawdeen, Draculaura, Operetta, and Catty Noir, the last of whom has been struggling to come up with a new original song. They meet aspiring performer Luna Mothews, robotic DJ Elle Eedee, and ballerina Mouscedes King. They also bump into Toralei, who was invited by Cleo's sister Nefera. Ramses and Nefera conspire to take over Boo York by trying to set up Cleo with the gala patron Amuncommon Ptolemy's son Seth, where, if Cleo and Seth make a promise under the comet's power, the promise cannot be unbroken. Meanwhile, back at Monster High, Ghoulia discovers the comet seems to be on a collision course to Earth, and tries to stop it before it blows up the entire world.
Several doll lines were developed from Boo York, Boo York: City Ghouls, City Schemes, Gala Ghoulfriends, Frightseers, Comet-Crossed Couple, and Out-of-Tombers.[7][8]
↑"Monster High: Boo York, Boo York". Behind The Voice Actors. Check mark indicates role has been confirmed using screenshots of closing credits and other reliable sources. Archived from the original on October 14, 2015. Retrieved June 20, 2018.