Thanks Jenny. That's a good one. If they can be entertaining, they don't seem like info dumps. If only George Orwell had injected some humour into The Theory and Practice of Oligarchical Collectivism. Mmm ... probably not the right tone :)
Just on a bit of a tangent, Air New Zealand go to a lot of trouble to make their inflight safety videos entertaining. They did one whole one based on Lord of the Rings and you wanted to pay attention. Just shows you can get information across in an interesting way. Thanks for the idea.