J.K Rowling wrote the screenplay for Fantastic Beasts and Where to Find Them, which stars Eddie Redmayne, Ezra Miller, Colin Farrell, Katherine Waterston, Dan Fogler, and Alison Sudol.
They mentioned Grindelwald in this trailer which is already giving goosebumps to all the Harry Potter fans.
Watch the trailer below.
The Fantastic Beasts and Where to Find Them arrives in theaters on Nov. 18