It's here and honestly. it's the best Christmas present we could've asked for.
Last month, it was announced that HBO Max were putting together a magical Harry Potter reunion, celebrating the wizarding world's 20th anniversary.
“There’s magic in the air here with this incredible cast, as they all return home to the original sets of Hogwarts, where they began 20 years ago,” executive producer Casey Patterson said in a statement.
“The excitement is palpable as they prepare to take their fans on a very special and personal journey, through the making of these incredible films.”
While we've still got to wait till the new year to watch it on TVNZ, we have just got a present that would rival Mrs Weasley's best homemade sweater... the trailer!
Watch the full thing above.