|Selena Gomez||Grace/Cordelia Winthrop Scott|
|Catherine Tate||Alicia Winthrop Scott|
|Valérie Lemercier||Madame Valerie|
|Christophe Malavoy||Bernard Marchand|
|Giulio Berruti||Prince Domenico da Silvano|
Best friends Grace and Emma quit their waitress jobs in small-town Texas and head to Paris for a summer adventure, accompanied by Grace's stepsister, Meg . The prepackaged tour fails to meet their expectations, however, and soon their spirits sag. But, when Grace is mistaken for a British socialite named Cordelia, she and her companions head to Monte Carlo to enjoy a week of yacht parties and cute bachelors -- then the real Cordelia arrives.