The 1991 Belgian documentary (internationally released as "Puberty: Sexual Education for Boys and Girls" ) remains one of the most controversial and starkly explicit pedagogical experiments in the history of European sexual education. Directed by Ronald Deronge and written by André Singelijn, this project moved away from standard medical illustrations in favor of raw, unreserved live-model demonstrations to explain adolescent physical growth.

Information regarding nocturnal emissions, voice deepening, muscle growth, and sexual desire.

“Some months your period will be easy. Other months it will hurt or make you cry for no reason. Talk to a female teacher or your mother. You are not alone.” — The Girl’s Body Book: English Translation from Sexuele Voorlichting , 1991 edition.

"Sexuele Voorlichting" (or "Puberty: Sexual Education for Boys and Girls") is a film that has garnered a unique and controversial legacy. Emerging in a period of changing sexual mores, it took a radical approach to educating adolescents by eschewing all artistic abstractions in favor of explicit, real-life depictions of the human body. While praised by some for its comprehensive and non-judgmental information, it has been harshly criticized by others for its explicit child nudity and perceived exploitation. Today, the film serves as a provocative artifact that pushes the boundaries of what constitutes educational media for young people, forcing a critical examination of the fine line between demystifying sexuality and potentially causing harm.

The documentary was structured as a straightforward, non-dramatized educational guide. It was designed for European adolescents aged 11 and up to demystify the rapidly changing teenage body.