I don't know why the director or producers divided the "Ban the Sadist Videos!" in two parts since the subject is the same and both documentaries are quite short (50 minutes more or less). And they're good for giving us lots of information on the video censorship wave that struck UK between 1980's and 1990's.
The difference between both films is a slightly quality advantage of the second part with dealing with the debate of how horror/thriller movies should be regarded in terms of influencing the common viewer in doing absurd acts of murder, rape and things like that. This installment was more important than the other because it reflected on serious issues like the Hungerford Massacre and the murder of James Bulger and how the media insisted that films like "Rambo" and "Child's Play" were major influences to those crimes perpetrators. And as some of us know films like "The Good Son" (released straight to video) and "Mikey" (still banned in UK but not in Ireland) paid the price because society was outraged enough with what was happening in real life. This whole discussion plus the battle in the Parliament to establish more censorship on films makes of this documentary an interesting and relevant film.
It follows the concept of the other film, it repeats some things as well but it's all good. 8.5/10S