The box office failure of Fantastic Beasts 3 though, shouldn't be attributed to the movie's screenplay, which had a significant boost from the Harry Potter franchise’s secret weapon.
Though J.K. Rowling wrote all the Harry Potter books, screenwriter Steve Kloves adapted all but one of the subsequent movies. J.K. Rowling switched from author to screenwriter for 2016's Harry Potter prequel series needed to be reinvigorated.
Bringing in Harry Potter's main screenwriter Steve Kloves to co-write Fantastic Beasts: The Secrets of Dumbledore was a wise creative decision by the Fantastic Beasts producers. Adapting the Harry Potter books gave him a valuable understanding of the cinematic qualities that a screenplay needs, as opposed to the structure of a novel, which The Crimes of Grindelwald often feels like. His knowledge of the Wizarding World meant he could bring more of the Harry Potter-style magic and mythology back to the story that was largely missing from the second Fantastic Beasts movie. This is emphasized by the fact that The Secrets of Dumbledore's character arcs are more fleshed out without grinding the film to a halt or meandering down narrative cul-de-sacs. This is especially noticeable in Dumbledore and Grindelwald's relationship, with both wizards' stories undoubtedly benefiting from Steve Kloves ing the project.
Notably, the one Harry Potter movie that Steve Kloves didn't write the screenplay for ( Fantastic Beasts 3 recons Harry Potter lore throughout the movie, these changes are all in service to the story and the characters to improve the movie.
It's unclear whether Fantastic Beasts franchise, Steve Kloves's contribution in elevating its story from the previous installment shouldn't be forgotten.
