Phew this is hard to put into words.
At first I thought the cinematography was stunning, beautifully shot and the period was captured perfectly - I felt like I was watching a film shot in 1972 and it brought back early memories of the 70s.
The script was wonderfully subtle, there was absolutely no judgements about the characters. It would have been very easy to show the mother as a cruel an twisted woman but instead you could empathise with her, she thought she was doing the best for her daughter and that made the whole thing more tragic but also more real and beautiful.
To me the central message of the film was that life, however short is something to celebrate. The girl makes references to St Katarina who only lived a short time but did many wonderful things. She may not have escaped her strict and cruel mother for long but at least she did it and had a wonderful time for a while.
I kept having to tell myself they were actors. The depiction of the girl's first kiss at college was unlike any other I've seen. They captured the clumsiness and true feeling of the situation perfectly.
And finally the soundtrack - you'd think that deep purple wrote 'Anthem' for this film. Earlier we see her dancing ecstatically to the track when she's finally free at college and then we later see the relevance when it's used to play out at the end of the film.
I'm not sure I'll ever see a better film that this and I recommend it to anyone who occasionally likes to be moved by a movie.