On a Library Thing discussion board some people were waxing lyrical about the book Kristin Lavransdatter by Sigrid Undset. Lazy cow that I am, I decided to see if my local library had the audio book version, and was delighted to see that (bonus!) they actually had a film version. It was filmed in 1995 and directed by Liv Ullmann. The work is a trilogy that spans more than 1000 pages, but I believe the movie only covers the first book. The story is set in 14th century Norway, and describes Kristin's decision to go against her father's wishes and marry a man she loves (who is in disgrace because he already has a mistress and children) instead of the man her father has chosen for her.
Many secret trysts and intense fumblings follow the initial meeting. It seems rather odd that Kristin, resident in the presumably cloistered and monitored nunnery, has no problem sneaking out at all hours for clandestine meetings with the lover. Eventually, it all comes out, and Kristin, ahead of her time, stomps her foot like a modern, petulant teenager and announces she will too marry the man she loves, no matter what her parents say.