Movies like The Princess Switch

Stacy, a type-A planner with a penchant for schedules, takes a spontaneous trip to the charming land of Belgravia at the suggestion of her sous chef and best friend, Kevin. While preparing for the Royal Christmas Baking Contest, Stacy faces an identical stranger and a strange request. Free-spirited but royally obligated,all Duchess Margaret Delacourt really wants is one last chance to experience life as a "normal person" before she dutifully marries the Crown Prince of Belgravia. Stacy can give her that wish.