aThe trio are currently shooting romantic comedy Monte Carlo, in which they play friends who are thrown into a glamorous life after they are mistaken for other people. The girls have been shooting for seven weeks, and have found they have a lot in common.

“They really get along really well. You can see they’ve gotten to be friends on this,” a source told People magazine. “It’s like a trip that way. There’s this chemistry and sometimes it’s almost conspiratorial but these girls really adore each other.”

Leighton, Selena and Katie have filmed scenes in Budapest, the capital of Hungary, and Paris. They were working around the famous Eiffel Tower in the French city recently, and could barely contain their excitement.

The actresses are proud of the film so far, and are certain it will be a hit. Also appearing in it is Glee star Cory Monteith, who has also bonded with his co-stars.

“The plot is about one of those inexpensive travel packages to France that sound too good to believe – and turns out to be,” another source explained. “The girls find themselves on one of those No Time To Lose tours, with a terrible hotel and terrible food, and through a case of mistaken identity, wind up in Monte Carlo at a ball.”

Source: Music Rooms