First there was the book, “Fantastic Beasts and Where to Find Them,” J.K. Rowling’s little piffle of a volume that could be read in a half-hour, and was simply a compendium of creatures found within her world of wizards, serving as a companion to her Harry Potter books. Then there was the movie of the same title, marking the first script written by Rowling, who proceeded to spin a dizzyingly complex story of good wizards and bad wizards and the problems created when [...]