Zenon: Girl of the 21st Century is a 1999 Disney Channel Original Movie, starring Kristen Storms as the eponymous heroine. The film was based on the book 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. Neverthless, the movie proved popular and warranted two sequels, Zenon: The Zequel in 2001 and Zenon: Z3 in 2004.