Moving Pictures by Terry Pratchett is a humorous tale about what happens when alchemists learn to make film and subsequently movies or "moving pictures". Then suddenly lots of people feel compelled to travel to the small town of Holy Wood and become a part of the moving pictures business. I'm sure it goes without saying what Holy Wood is a satire of. A sort of strange magic is involved with the moving pictures though that not only compels people to get into the business, but that also seems to make the actors go into trances while making the films and be able to do things that they have no experience with. However this magical force is not benevolent and it feeds off the moving pictures growing stronger and more powerful with disastrous results. I would not count this book among my favorite Discworld novels, but it's definitely good for a laugh in places and I'd recommend it to fans of the series.