As for the clarification, I was more concerned with people attributing the derivative work with the credit of the movie moreso than the director on the whole. I probably only phrased it how I did since you used Spielberg's name directly.

The thing I find irritating (on a grander scale, not pertaining to you, specifically) is when cases like this arise where the movie rides the success of the book.

I get that it's probably specific to people who have read the book vs. people who haven't, but I'm usually interested enough to ask, as sometimes there are cases when directors take the movie to a level the source material didn't, just as there are times when a director is unable to take good source material and turn it into a good movie.

Thanks again for the insight.