This is a double-DVD set of sex education films from 1917 to 1973. All the films now look dated, but are of some historical interest. The first DVD covers 1917 to 1938: the second covers 1940 to 1973. The back cover explains that "although these films were intended as educational material for general adiences - including young teenagers - this set has been classified 18 because of the explicit content in 'Growing Up' ". 'Growing Up' was a controversial 1971 film, which has its own page on Wikipedia. I can remember the controversy surrounding the film, but hadn't previously seen it, and my curiosity about it was my main reason for buying this set. Personally I think the 18 classification is too harsh: the film includes explicit shots of an erect penis, but in view of the educational context I would only have graded the film as 15. I would agree that the film is/was open to criticism for appearing to encourage sexual activity without giving adequate warning of the risks of STDs and without giving adequate information about contraception (since Martin Cole wanted to show an erect penis, I think he should also have shown how to apply a condom). Nevertheless, I would be happy to pass this DVD to an intelligent 14-year-old: I suspect that she would be very bored in places, and incredulous in others, but the films are an interesting historical record of British attitudes to sex education in the 20th century.