FirstLoveMovies

I found an interesting gallery recently.
http://cool-school.rajce.idnes.cz/no_name/
The girl is just amazing. Any idea what movie could it be? The only suggestion i have is that movie could be european, made in late 70s or early 80s.
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Interesting...i've see the source...The poster have lot of screenshots of this movie...surely had a clip and the question is...how it take? If is a clip is visible the title?

I don't speak czech and cannot ask to poster...