Some months back, ScreenRant published an article entitled 10 Worst Movies Based On Books, According To Reddit. A far from scientific approach, then!! :-) But even though it's light on detail, it's interesting to note what's in there -- along with some expected entires, such as Eragon and, yes, the Cirque Du Freak movie, it also lists... Harry Potter?!? Um, I seem to remember those films being rather popular actually... :-)

You can check out the full list here: https://screenrant.com/worst-movies-based-on-books-reddit/#eragon

In all honesty, I never know how to regard lists of this kind. On the one hand, a film based on my books is being slammed, which is a disappointing thing (even though, as I always point out whether the movie is getting hammered or praised, I had absolutely nothing to do with the adaptation), but on the other hand the author of the piece is pointing out that my books are widely loved, which is... well, lovely!! All I can say for certain is that I'd rather be on this kind of a list than one entitled "Great movies based on books that SUCK!!!" :-) :-) :-)