This summer, Leighton Meester stars with former (and who knows, possibly future) Gossip Girl co-star Katie Cassidy and Selena Gomez in the new film Monte Carlo.

The trio had pooled their savings for a dream trip to Paris, which turns out to be a big disaster. When they decide to take a break from their lousy tour and sneak into the lobby of a five-star hotel, one of the girls is mistaken for a spoiled British heiress.

Before they get the chance to reveal their true identities, the girls are wrapped up in a whirlwind of paparazzi, haute couture, and romance in Monte Carlo, Monaco.

The movie comes out July 1. Watch the trailer below!

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.