This timeless tale for all ages tells the story of Daphne (AMANDA BYNES), a spirited young American girl who yearns to meet the father she's never known - a man her bohemian mother (KELLY PRESTON) considers to be the great love of her life.
Determined to find her absentee dad and prove that love can conquer all, Daphne impulsively journeys to London, where she discovers that her father is none other than Lord Henry Dashwood (COLIN FIRTH), an influential aristocratic politician. Henry's patrician lifestyle and stuffy attitude clash with Daphne's freewheeling American upbringing - as do his social-climbing fiancée (ANNA CHANCELLOR) and her territorial debutante daughter (CHRISTINA COLE).
When Daphne's unique style and effervescent personality create an uproar in high society that threatens to undermine Henry's political career and his budding relationship with Daphne, she immerses herself in a whirlwind of upper crust British social and political events to please her father and fit in with her new family.
As she stifles her personality in an effort to meet her new familial obligations, Daphne discovers that her dream life is not as picture perfect as she had hoped. Is her fantasy falling apart, or will her fairytale come true?