HBO Max Launches on Prime Video and Hulu Japan in October – With Harry Potter Series Headlining

HBO Max Is Coming to Prime Video and Hulu Japan in October — With Harry Potter, Game of Thrones and More on the Slate

HBO Max just made one of the biggest distribution moves of the year. Warner Bros. Discovery has confirmed that the streaming service will launch on Prime Video and Hulu Japan in October, giving subscribers in those apps access to the full HBO Max slate — including the brand-new Harry Potter series that drops at Christmas. It’s the kind of cross-platform deal that signals just how much the streaming landscape has shifted.

The announcement arrived from Naman Ramachandran for Variety on Monday, laying out a rollout driven by a global partnership between Warner Bros. Discovery and Nippon Television, which owns Hulu Japan. HBO Max will appear as a dedicated hub within both the Prime Video and Hulu Japan apps, and the two companies will also explore distributing Nippon TV and Hulu Japan’s local content slate on HBO Max internationally — a two-way street that could bring Japanese originals to a worldwide audience.

What Subscribers Get — and What It Costs

On Prime Video, HBO Max will be offered as an add-on subscription, available in either Standard or Premium Tier. For Hulu Japan subscribers, the news is even sweeter: they’ll get the HBO Max Standard Tier folded into their existing plans at no additional cost starting in October. That’s a significant value add for Hulu Japan’s existing customer base and a play engineered to grow HBO Max’s reach without asking newcomers to commit to a separate bill.

The pricing structure matters for how the deal reads. HBO Max isn’t launching as a standalone Japan service — it’s riding inside other platforms’ infrastructure, which keeps subscriber-acquisition costs down and lets Warner Bros. Discovery plug straight into audiences already spending time on Prime Video and Hulu. HBO Max will be available in Japan only on these two platforms starting October 1.

The Launch Lineup Is Stacked

The first library arriving in October is a serious flex. Subscribers will get the entire Game of Thrones universe — including House of the Dragon and A Knight of the Seven Kingdoms — plus DC Studios titles like Lanterns, The Penguin and Peacemaker. Add in hits like The Last of Us, The White Lotus and Euphoria, and the October launch suddenly looks like one of the strongest streaming content drops in Japan for years.

Beyond the heavyweights, Warner Bros. Television staples like Friends and The Big Bang Theory ride into the catalog alongside Max originals including The Pitt and the comedy spin-off Stuart Fails to Save the Universe. The film slate pulls no punches either, with titles like One Battle After Another, Barbie, the Harry Potter and The Lord of the Rings franchises, and a broad spread of the DC Universe.

The Harry Potter Series Is the Headliner

The crown jewel of the launch is undeniably the new live-action Harry Potter television series, officially titled Harry Potter and the Philosopher’s Stone. The inaugural season is slated to debut at Christmas, timed perfectly to ride the holiday release window and to headline HBO Max’s Japan expansion. It’s the project Warner Bros. Discovery has been building toward for years, and the expectation is that a fresh, series-length take on the books will be the streaming event of the holiday season.

James Gibbons, president of APAC at Warner Bros. Discovery, framed the launch around exactly that momentum. “We look forward to working with Nippon TV, Hulu Japan and Prime Video to continue the momentum in this next phase of growth — and particularly ahead of the new HBO original ‘Harry Potter’ series — an IP that is incredibly popular with Japanese fans,” Gibbons said in the announcement.

Hulu Japan CEO Dosaka Tadahisa tied the deal to the platform’s 15th anniversary, pitching Hulu as the go-to home for international series. “Since its launch, Hulu Japan has promoted the message ‘If you want to watch international series, watch them on Hulu’ and we now aim to be the number one domestic platform for international series,” Dosaka said.

What This Says About the Streaming Market

This is more than a single-market launch — it’s a template. Warner Bros. Discovery has been vocal about its “asset-light” approach to streaming growth, and this deal is textbook. Rather than building marquee-branded standalone apps in every market, the company is distributing HBO Max through platforms that already own the customer relationship. Prime Video’s add-on model has become a genuine distribution engine for streamers, and Hulu Japan brings its own subscriber base plus Nippon TV’s local content firepower on the other side of the deal.

The reciprocal element is the quietly ambitious part. In exchange for placing its slate on Hulu Japan, Warners gets the option to distribute Nippon TV and Hulu Japan’s local programming to HBO Max internationally. That flips the traditional script, positioning Japanese originals for a global rollout through Warner Bros. Discovery’s worldwide reach — a potentially major win for Japanese creators who have long sought bigger Western audiences. Nippon Television Network President & CEO Fukuda Hiroyuki called the arrangement “one of the most significant” in the company’s history, citing unscripted formats from Gyokuro Studio gaining international attention.

The Asian Strategy at Work

Japan has become an increasingly important battleground for Western streamers. Prime Video has poured billions into local production across the region, and the appetite for high-end international series remains strong. HBO Max’s decision to launch through existing platforms rather than as a standalone Japan app reflects a broader strategic play across Asia — where Warner Bros. Discovery has leaned into partnerships to grow its footprint without the heavy marketing spend of a brand-new direct-to-consumer platform.

For fans, the practical takeaway is simple: if you’re a Prime Video subscriber or a Hulu Japan user, October 1 is when one of the richest streamers in the world arrives on your doorstep — and Christmas is when the Harry Potter series lands to anchor the whole thing. It’s a one-two punch that could reshape what Japanese audiences expect from their existing subscriptions.

The Bottom Line

HBO Max’s October launch on Prime Video and Hulu Japan is a decisive, strategic move that rewards existing subscribers and dramatically broadens the reach of some of the most-watched shows on the planet. The Game of Thrones universe, a loaded DC slate, prestige hits like The White Lotus — and, above all, the new Harry Potter series — give the launch real weight. If you’ve been holding off on any of these franchises, this October-and-Christmas window is the moment to jump in.

Are you excited to see HBO Max’s library land on Prime Video and Hulu Japan — or is the paywall on top of your existing subscription the sticking point? Drop your take in the comments.