Here's JHailey's IMDb plot summary for Valerie and Her Week of Wonders (1970) [Czech: Valerie a týden divu]:
A thief awakens Valerie, just 13, taking earrings left to her by her mother. By morning, the earrings have been returned, Valerie's first period has begun, and a troupe and a missionary have arrived in her 19th century town. The thief is Orick; he reports to a cloaked constable who may also be the missionary. Attention to sexuality is everywhere: Valerie's grandmother's puritanical nature, the missionary's sermon to the town's virgins, the parish priest's attempt to seduce Valerie, and lusty adults at play. Valerie's nascent sexuality puts her in great danger. Can she navigate the passage from innocence to experience, a route teaming with vampires, a murderer, and an obscure family tree?
This Czech New Wave is another example of the worldwide nature of ephebophilia. This is the first time that we've written about ephebophilia in the Czech Republic.
In this Czechoslovakian film, 13-year-old Valerie (Jaroslava Schallerová) is sought after by men and women - friends and relatives. For example, Valerie is saved from being aggressively seduced by the middle-aged priest by her magical earrings, she cured a beautiful topless family friend from the curse of a vampire by lavishing her with kisses and after she gave the earrings to her mother as a gift, her mother very passionately kissed the baby faced maiden.
Unlike a number of films, the dark haired nymphet is this film wasn't played by an older actress. Despite her multiple (non-sexual) topless scenes, Jaroslava Schallerová was 13 -years-old when Valerie and Her Week of Wonders was filmed. (Coincidentally, the age of consent in the Czech Republic is 15.)
Interestingly, this film is considered one of the outstanding achievements of Czech new-wave cinema. The film received those accolades despite the fact that the star of the film is a topless 13-year-old, who is being seduced by middle-aged men and women - some of whom are her relatives (i.e., incest).
This film is based on the book that was written by Vítězslav Nezval - an avant-garde Czech writer and co-founder of the Surrealist movement in Czechoslovakia.
Valerie and Her Week of Wonders can be seen with English subtitles here.