“Extra’s” Renee Bargh caught up with Jude Law, Katherine Waterson and Eddie Redmayne to talk about “Fantastic Beasts: The Crimes of Grindelwald.”

Watch the video to find out how J.K. Rowling shared secrets with the cast, and how Jude prepared to play Dumbledore, and more.

“Fantastic Beasts: The Crimes of Grindelwald” opens Nov. 16.