Jean de Florette and Manon of the Spring (1986)
If you have never watched a French film... this would make a very nice introductory duo! (Picture shows a two film pack available at stores.)
The renowned Gerard Depardieu stars in this deeply moving study of human greed and the virtues of hope and generosity.
These two films will make a fine teen movie night!
Note: The second film, if I remember correctly, shows a brief scene with nudity. It is devoid of sexual innuendo: the main character bathes in the spring.