I finally saw Chalet Girl. It's neither deep or intellectual, but it's a great feel good movie. Ed's mainly the eye candy, but he's enjoyable as Jonny. And he SMILES nearly every scene! As for the film's style, the rich characters seemed more like Sloanies than London/American fashionistas (although it may also be the result of budget limitations too: the costume designer is on record saying the cast lent him some of their RL clothing/jewelry to help make the film look more authentic).
Screencaps (courtesy of Ed Westwick World) of Jonny's outfits: