Let’s take a look at the number of films based on books.
It’s actually a lot less the past 3 years than I would have expected. The reason for this is mostly if you make a movie based on a book since ‘Potter’, it better be more than one.The spikes around the early 2000s are when company’s were looking for their ‘Potter.’Not many one off (non-Sparks) novels are turned into films anymore.