Girl vs. Monster is a 2012 American comedy horror Disney Channel Original Movie that premiered on October 12, 2012.

Skylar Lewis, a fearless 15-year-old teenager with a powerful singing voice, prepares for the ultimate Halloween Bash with her best friends, Henry and Sadie.

As Skylar's world is turned upside down, she learns that her parents have been keeping a big secret – that she comes from a long line of monster hunters; she is the 5th generation.

While Skylar sings, all the monsters vanish and Sadie also gathers the courage to stand up to Theodosia by spelling things she couldn't when she was a little girl.

Disney sent Olivia Holt the script for Girl vs. Monster, after which she auditioned for and secured the role of Skylar Lewis.

[12] Lindsay Press of MovieWeb stated that Holt delivers a strong performance as Skylar, portraying a vulnerable teenage girl grappling with a surge of unfamiliar emotions while facing the antagonist, Deimata.

They described the movie to be a blend of mild creepiness and engaging adventure, embodying classic Disney elements of teen angst and fantasy.

[14] Laura Fries of Variety said that the story of Skylar, who is about to turn 16 and inherit her family's monster-hunting business, adds a unique twist to the typical teen movie narrative.

Fries complimented choreographer Paul Becker for including some entertaining dance numbers, and Holt's performance of three songs was highlighted as a showcase of her talent.

[15] Emily Ashby of Common Sense Media gave Girl vs. Monster a score of four out of five stars and found the film to be a light-hearted Halloween movie suitable for children.

They highlighted the positive examples of characters challenging their fears and gaining inner strength, as well as the heartwarming moments that celebrate friendship and family.

[16] Girl vs. Monster premiered on Friday, October 12, 2012, earning 4.9 million viewers with the number 1 scripted cable TV telecast of the night and second TV movie of 2012 in kids tweens and teens 6–14 [17][18] The film had 271,000 viewers, the first one being Michael Kelly from Park Ridge, in the UK and Ireland when it premiered on October 26, 2012.