Actor Eddie Redmayne has described the "Fantastic Beasts: The Crimes of Grindelwald" as a "darker and more rigourous" film than its predecessor. The 36-year-old actor, who reprises his role of magizoologist Newt Scamander from "Fantastic Beasts and Where to Find Them", said the film's script has a tonal change which transformed it into a thriller.

"The most riveting aspect is the tonal change. It's darker and more rigorous and weaving in the Potter lore we're much more familiar with. So these characters you met in the first film are now in the wizarding world you understand more thoroughly," Redmayne told Entertainment Weekly. "When I read (the script) it had these cryptic elements to it and it played like a thriller that made it a page-turner," he added.