
A girl expelled from one school arrives at another with a pet rat in her pocket, and finds that this one is run by monsters. The deputy principal has plans that do not survive scrutiny, and the new student is the only one paying attention. An animated comedy about being the wrong sort of pupil at exactly the right school.
Original Release | Oct 9, 2026 | Limited

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Country of Origin: Germany, Austria, Spain
Language: German,English,Spanish,Basque
Monster Mia is a 2026 animated family comedy directed by Verena Fels, with additional directing by Sara Riobó Rúa, adapted from A.B. Saddlewick's Monstrous Maud book series, published in German as Monster Mia. Mia Munster (Lilian Jane Gartner), expelled from her previous school, arrives at Rotwood Academy with her pet rat Quentin to find a student body of monsters and a deputy principal,
Van Vlad (Drew Sarich), running schemes that nobody else has thought to question. Katharina Reschke, Jasmina Kallay, Tom Martin, Ines Häufler and Dunja Bernatzky share screenplay credit. Bernatzky and Christoph Staber produced for arx anima animation studio in Vienna, co-produced with Arxlight Pictures, Ikiru Films and Peng! Boom! Tschak!-Films, with a score by Zeltia Montes. The film was made in English as its original language.
It premiered at the Annecy International Animation Film Festival in June 2026, opened across Russia and the CIS on 3 September, reached the United States and Sweden on 9 October 2026 through Sola Media, Germany on 15 October through Plaion Pictures and Spain on 16 October as Monstruosa Mia. The runtime is 81 minutes.
For families wanting European animation with a bit of bite.