Zenon: Girl of the 21st Century is a 1999 Disney Channel Original Movie, starring Kirsten Storms as the eponymous heroine. The film was based on the book Zenon: Girl of the 21st Century written by Marilyn Sadler and Roger Bollen. The film was originally conceived as a pilot for a potential television series, but the series never got off the ground. Nevertheless, the movie proved popular and warranted two sequels, Zenon: The Zequel (2001) and Zenon: Z3 (2004).