The trailer to the sequel of Fantastic Beasts is a treat for "Harry Potter" fans. While actor Jude Law fills the shoes of the character of the Hogwarts school headmaster Albus Dumbledore, Eddie Redmayne returns as the charmingly clumsy Newt Scamander. Warner Bros cast a spell on Harry Potter fans on Tuesday night with the release of the first trailer for "Fantastic Beasts: The Crimes of Grindelwald", reports variety.com.