HBO's Harry Potter series gets its first real trailer — premieres Christmas Day 2026

HBO has dropped the first full trailer for its Harry Potter series, confirming a Christmas Day 2026 premiere on HBO Max. The season covers Harry Potter and the Philosopher's Stone across eight episodes — and the studio is promising more depth than the 2001 film could fit into two hours.

The look

Familiar scenes are all here: the walk through Platform 9¾, the Sorting Hat ceremony, first-year classes at Hogwarts. The trailer leans heavily on nostalgia while signalling room to breathe — eight episodes means subplots the films cut entirely could finally make it to screen. One small oddity fans have already flagged: the Mandrakes don't scream. Whether that's a creative choice or a trailer edit remains to be seen.

The cast

Three relative unknowns lead the show. Dominic McLaughlin plays Harry, Arabella Stanton is Hermione, and Alastair Stout takes on Ron Weasley. The supporting bench is considerably more recognisable: John Lithgow steps into the role of Albus Dumbledore, joined by Janet McTeer and Nick Frost. Online reaction to the young leads has been mixed, but most viewers seem to agree the adult cast looks the part — Lithgow's beard aside, which has raised a few eyebrows.

What's next

Season 1 arrives December 25, 2026, exclusively on Max in the US and UK/Ireland (per Wizarding World Official). HBO has confirmed a second season is already in development, with Chamber of Secrets the expected source material. The plan is to adapt all seven books across roughly a decade — one season per year, per Deadline. This is the first new Potter screen content in 15 years, since Deathly Hallows Part 2 closed out the film franchise in 2011. The Christmas slot isn't accidental — it's exactly where the Potter films used to live.