A Cinderella Story is a 2004 American teen romantic comedy film directed by Mark Rosman, written by Leigh Dunlap and starring Hilary Duff, Chad Michael Murray, Jennifer Coolidge, and Regina King. A modernization of the classic Cinderella folklore, the film's plot revolves around two internet pen pals who plan to meet in person at their high school's Halloween dance.

The film was released on July 16, 2004. While it was panned by critics, the film was a box office success, grossing $70.1 million against its $19 million budget, and inspired multiple straight-to-video films. Over the years, it has developed into a cult classic.