A Cinderella Story (2004)

High school senior Sam Montgomery lives at the beck and call of her self-obsessed stepmother Fiona and her sinfully wicked stepsisters, who treat her more like a servant than a member of the family. Sam finds her less-than-sparkling social life wonderfully complicated when she meets her prince charming online. But when her anonymous cyber soul mate turns out to be her high school's popular quarterback Austin Ames, Sam makes a mad dash back to reality, leaving her cell phone behind just before the clock strikes midnight.

Official website: http://acinderellastory.warnerbros.com/