It's 1959, and a widowed official with the United Nations in Delhi, India brings his two daughters from England to live with him.
Tension between 15-year old Una (Hattie Morahan) and Alix, a Eurasian woman acting as governess soon erupts, as Una suspects her father's motives.
Una turns to an Indian poet for solace and her involvement with him leads to complications that upset the household.
And not to forget, she has a cute younger sister
I think this movie would fit in perfect, but although searching since years, there was not even a trace.
http://www.imdb.com/title/tt0114106/