80's 1st world war movie/chic flick
I need help finding a movie title. I believe it was filmed in the 80's but the story takes place before the war - somewhere in Europe. A country bumpkin is sent to an upscale all girls boarding school. Her classmates dislike her and her rough manners (I recall a scene in the movie where she enters the bath house and much to her classmates horror she completely disrobes before entering the tub). Over time she eventually befriends the head-mistress (I recall another scene where they have a large pillow fight on the grand stairs). After a few months the war comes and she flees with some of her classmates (the very same that used to tease her) into the mountains and go into hiding. They are camping out in a cave when her old boyfriend arrives with food for them. The rest of the movie is a bit blurry - I was very young when I saw it.
Does this sound even remotely familiar to anyone? Please help!
