Kristen Stewart Smiles As She Jets Off To Europe

It's not that often that we see Kristen Stewart in a good mood ... maybe she's that excited to get out of L.A.?

On Monday afternoon the 23-year-old starlet was snapped leaving Los Angeles International Airport, and she is currently on her way to Europe to begin shooting her new movie, Sils Maria, which has filming locations in Switzerland, Germany and Italy. The movie follows an actress Maria Enders (played by Juliette Binoche) who becomes obsessed with a younger starlet, Jo-Ann Ellis (played by Chloe Moretz), and Kristen will play Valentine, the assistant to Maria's character.

Mia Wasikowska was originally cast in the flick for Valentine's part, but she dropped out and K. Stew replaced her. Funny thing is, Mia is currently filming Maps to the Stars with Rob Pattinson...