Leighton Meester and Selena Gomez preparing

Leighton Meester and Selena Gomez preparing to shoot scenes for "Monte Carlo" the movie around the world-famous Eiffel Tower in Paris on June 21, 2010. The teen movie sees three young women vacationing in Paris who find themselves whisked away to the glamorous resort of Monte Carlo after one of them is mistaken for a British heiress.