5 best new movies to stream this weekend on Netflix, HBO Max, Disney+ and more (June 27-28)

It's the last weekend of June, and this summer's heat wave is showing no signs of stopping. If you're looking to keep from melting by catching up on your watchlist, you're in luck, because the best streaming services are serving up plenty of great new movies to choose from.
Leading the pack this week is James Cameron's latest dazzling return to the war-torn planet of Pandora, "Avatar: Fire and Ash," on Disney+. You've also got one of this year's biggest surprises, "The Sheep Detectives" on Prime Video for another crowd-pleasing favorite to watch this weekend.
Over on Netflix, you can catch the delightfully unhinged buddy comedy "Little Brother" starring John Cena and Eric André, while HBO Max has an underrated horror movie "Undertone" with a sound design that's pure nightmare fuel. Finally, I urge you to check out Boots Riley's "I Love Boosters" on paid video-on-demand platforms if you liked "Sorry to Bother You" and are looking for another movie unlike anything you've ever seen before.
So let's dive into the best new movies on streaming to watch this weekend.
‘Avatar: Fire and Ash’ (Disney+)
After raking in $1.5 billion in theaters, "Avatar: Fire & Ash" is finally landing on Disney+. Granted, that's less than the first two movies in the series, as I assume a lot of folks were waiting to catch "Fire and Ash" on streaming — that was my plan, at any rate. This threequel picks up not long after the events of "The Way of Water," with the Sully family still reeling after the death of Neteyam (Jamie Flatters), the eldest son of human-turned-Na'vi Jake (Sam Worthington) and Neytiri (Zoe Saldaña).
There's hardly time to mourn before a new threat sparks up: a fiery Na'vi tribe led by Varang (Oona Chaplin), who's allied with humanity's forces. It all leads to a showdown that's as visually stunning as the rest in James Cameron's blockbuster series, though the plot does tread much of the same territory as "The Way of Water."
Watch "Avatar: Fire and Ash" on Disney+ now
‘Little Brother’ (Netflix)
As a big fan of both "The Eric André Show" and John Cena's unhinged straight man brand of humor, Netflix's new buddy comedy "Little Brother" is at the top of my watchlist this weekend. Cena stars as a successful real estate agent Rudd whose unhappy but stable life is thrown into chaos when his former mentee Marcus (André) reappears with the subtlety of a wrecking ball at the worst time possible.
A walking magnet for trouble, Marcus finds a way to turn every situation into a disaster, which the buttoned-up Rudd is forced to clean up. Judging by the trailer, "Little Brother" leans heavily into slapstick comedy, with Cena playing the exasperated straight man opposite André's off-the-wall energy.
Watch "Little Brother" on Netflix now
'I Love Boosters' (PVOD)
Boots Riley applies his brand of dark comedy and magical realism to a Robin Hood–style proletarian allegory in "I Love Boosters," a surreal heist comedy I was sad to see do so poorly at the box office despite its 92% critics rating on Rotten Tomatoes. The perennially hilarious Keke Palmer stars as Corvette, an aspiring fashion designer struggling to escape a literal boulder of debt.
To pay it off, she heads an all-women shoplifting crew known as the Velvet Gang that targets high-end San Francisco stores and sells back to her working-class Oakland community. It's enough to catch the attention of ruthless fashion mogul and capitalism incarnate Christie Smith (Demi Moore), and I won't spoil any more than that because it's a wild ride that's better experienced than explained. This is the kind of movie that hits you hard and fast with dazzling visuals and insane ideas, leaving you thinking "What on earth did I just watch?"
Buy or rent "I Love Boosters" on Amazon now
'Undertone' (HBO Max)
2026 has been a marquee year for horror movies, and while you're waiting for "Obsession" or "The Backrooms" to hit streaming, HBO Max has a great one to tide you over that you may not have heard of. "Undertone" stars Nina Kiri as Evy, the host of a hit horror podcast who records episodes from home while caring for her ailing mother (Michèle Duquet).
When she and her co-host (Adam DiMarco) receive a mysterious audio recordings of a couple's terrifying paranormal encounters, even the usually skeptical Evy begins to suspect something supernatural is at play. As the chilling tapes reveal something increasingly sinister, she's forced to reckon with the possibility that some ghosts might be real after all.
Watch "Undertone" on HBO Max now
'The Sheep Detectives' (Prime Video)
One of the year's most delightful surprises, "The Sheep Detectives" puts a clever spin on the classic murder mystery formula. After their beloved shepherd, George (Hugh Jackman), is found dead, a flock of sheep sets out to uncover the truth behind his murder. The result is a witty, heartwarming whodunnit that's just as entertaining for adults as it is for younger viewers.
The stellar voice cast only adds to the fun, with standout performances from Bryan Cranston, Patrick Stewart, Bella Ramsey, and more. This Amazon Original is the kind of family-friendly mystery that's easy to recommend, though I'll warn you ahead of time to grab the tissues, because this is the kind of comedy that'll make you laugh and cry in equal measure.
Watch "The Sheep Detectives" on Prime Video now
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