The first ever flicks from the set of the upcoming Harry Potter TV series on HBO Max feature the cast arriving at the London Zoo to shoot the memorable Dudley Dursley birthday scene from the very first book and film, and fans are losing their minds over one key detail.

HBO's "Harry Potter" television adaptation is slowly coming together, but we're still a ways out from actually getting it on our screens. That said, we are learning more and more as the months go on.

HBO is betting high on the success of the Harry Potter series, by making sure the cast can keep their formal education while shooting.