What is new on UK streaming in May 2026

May 2026 is one of the busier months UK streaming has seen this year. Netflix runs its first ever live MMA event, Prime Video drops the long-delayed second season of Citadel, and the Untold sports documentary strand finally arrives in a UK-specific format. Three nostalgia heavyweights -- The Breakfast Club, Pretty Woman and 13 Going on 30 -- also land on Netflix on the first of the month. Sources for the schedule below: What's on Netflix's monthly roundup and The Hollywood Reporter.

On Netflix

• 1 May: 13 Going on 30, The Breakfast Club, Pretty Woman -- three catalogue films arrive on day one.
• 7 May: Legends, season one. A 1990s crime drama based on a true story.
• 12 May: Devil May Cry, season two. The animated adaptation continues, with Dante and Vergil's rivalry at the centre.
• 12 May: Untold UK: Jamie Vardy. The first of three UK-focused sports documentaries.
• 16 May: Black Phone 2. The horror sequel arrives 10 months after its cinema run.
• 16 May: Ronda Rousey vs Gina Carano. Netflix's first live MMA broadcast, headlining a card that also features Nate Diaz vs Mike Perry and Francis Ngannou vs Philippe Lins, from the Intuit Dome in Los Angeles.
• 19 May: Untold UK: Liverpool's Miracle of Istanbul. The 2005 Champions League final from inside the dressing room.
• 21 May: The Boroughs. A new sci-fi adventure from the Stranger Things creative team.
• 26 May: Untold UK: Vinnie Jones. The closer of the UK Untold mini-series.
• 27 May: A Good Girl's Guide to Murder, season two.

On Prime Video

• 6 May: Citadel, season two. All seven episodes drop at once -- a binge release rather than the weekly drip used in season one. The Joe and Anthony Russo spy thriller picks up after the events of season one with Mason, Nadia and Bernard scattered across Europe, according to Screen Rant's recap. The supporting cast adds Jack Reynor and Matt Berry.

The standout: Netflix's first live MMA card

Saturday 16 May is the headline night of the month. Ronda Rousey returns to professional competition for the first time in nine years to fight Gina Carano in a five-round, 145-pound contest sanctioned under the Unified Rules of MMA. The card is promoted by Most Valuable Promotions and is included in every Netflix subscription tier -- there is no pay-per-view upsell.

It is also the same night Black Phone 2 lands on Netflix in the UK, so if you are juggling family viewing and combat sport, the schedule is going to do most of the work for you.

What this means for WhereToStream users

If you only pay for one streamer this month, the value depends on what you watch. Netflix has the volume -- 10 named arrivals across drama, animation, sport and documentary, plus the live MMA event. Prime Video's case rests almost entirely on Citadel.

We track which titles are free on each subscription you already pay for. Once May's slate has settled into the catalogue, browse what's new on the services you have to see whether you actually need to add a second subscription -- or whether what you wanted to watch is included in something you already pay for. The cheapest content is always the title you are not currently subscribing twice for.