Romantic comedy starring Selena Gomez, Leighton Meester and Katie Cassidy. High school student and part-time waitress Grace (Gomez) has always dreamed of travelling to Paris with her best friend Emma (Cassidy). Her dream starts to unravel when her uptight stepsister Meg (Leighton Meester) announces that she will be joining them. Needless to say, their trip turns out to be a big disappointment - until they wander into the lobby of a luxury hotel and Grace is mistaken for a famous British heiress. Before they get the chance to reveal their true identities, the girls find themselves whisked off on a whirlwind tour to Monte Carlo, where all three find adventure and, of course, love.