On the far side of the moon, Sam Bell works alone, mining Helium-3 with the final weeks of a three-year contract ticking down. Then the film calmly yanks the ground out from beneath him.
The movie is Moon, and this month you can watch it for nothing. No credit card, no premium tier, no upsell at the end.
There was a time when free streaming meant a junk drawer of oddities and direct-to-video padding. Not anymore. As the subscription services hike their prices, endlessly rejig their tiers and stuff in more advertising than anybody should accept from something they already pay for, Pluto TV, Plex and Tubi have quietly earned a permanent slot in the cinephile rotation. Add YouTube’s free movie shelf and the science fiction selection alone justifies signing up.
September is treating the paid services well, too: Alien and Aliens are arriving on Netflix, Deep Impact is on Paramount+, and The Thing is joining Prime. Still, a paywall isn’t a prerequisite for quality. Seven serious additions have just turned up on the free platforms, every one of them sitting in four and five-star country, and the only price of admission is sitting through commercials the old-fashioned way. With 2026’s theatrical slate drawing new recruits into the genre, that’s shrewd timing.
Moon is the masterpiece, and it only improves with age
Duncan Jones opened his career with Moon, followed it with Source Code, and what his filmography has looked like since is both a puzzle and a real waste. That debut remains a masterclass in stripped-down science fiction, and back then it announced an exceptional new voice behind the camera.
It settles you into its airless loneliness, then drops a bleak, late-stage-capitalist reveal squarely on your skull. Rockwell shoulders virtually the entire picture with no scene partner to play against, and the performance genuinely lands emotionally. Viewed in 2026, a man cloned over and over at the convenience of a dehumanizing corporation feels distressingly on the nose. Set even that aside and you’re still left with Clint Mansell’s score and a small-scale science fiction triumph constructed entirely around one actor.
Nothing has come close to Under the Skin
Jonathan Glazer’s 2013 sci-fi horror is a haunting exercise in atmosphere, built on what is arguably the finest work of Scarlett Johansson’s career as an alien presence stalking Scotland for unwary men. That blend of unsettling menace and heavy eroticism has all but disappeared from the genre, for all the influence Species once wielded, and its scarcity only makes Glazer’s picture feel odder and more inviting.
Sit through it once and the title arrives with an uncomfortable click of understanding, because that is precisely the effect this surreal, pared-back curio has on a viewer. Glazer filmed with concealed cameras and kept the genuine footage, which sharpens the strangeness of an A-list star steering a white van around Glasgow in search of prey. There’s a soft Lynchian tug to the whole thing. You can drift into something bordering on a trance. Curiosities like this are the argument for keeping the genre’s borders open.
Small Soldiers was misjudged, and its effects have lasted
Three years on from Pixar’s enchanting tale of toys that come alive when nobody’s looking, Joe Dante took that same premise into far meaner territory — and was misread for it in the same way Fight Club and Starship Troopers were. Marketed as a family romp, Small Soldiers actually sits much nearer the register of Dante’s Gremlins films, and it has weathered nearly 30 years handsomely.
The toys divide into the sacrificial Gorgonites and the brutish Commando Elite hunting them, and the roster of talent crammed in is faintly ridiculous: Tommy Lee Jones, Frank Langella, Spinal Tap veterans Michael McKean, Christopher Guest and Harry Shearer, plus a few faces from The Dirty Dozen. Reviewers of the day were chilly about it, yet most of that anxiety concerned whether the film was appropriate for kids, a question entirely separate from whether it’s any good.
The digital effects — from Industrial Light & Magic, naturally — still stand up today, in no small part because Stan Winston’s practical puppetry carries so much of the weight. A great deal of later, all-digital science fiction has fared far worse. Dante’s movie is a gem that deserved a kinder reception.
Short Circuit gave Hollywood one of its finest robots
Sooner or later somebody will follow through on the long-threatened remake of John Badham’s 1986 sci-fi comedy, an idea that’s been drifting around since about 2008, and it’ll be a grim day. Being old is no justification for remaking an eighties film, although this one does come saddled with an obvious problem (more on that shortly).
Picture an odd relative of E.T. and Crocodile Dundee with a science fiction twist: Number 5, a prototype military robot, is struck by lightning and comes to consciousness. From there it becomes a fish-out-of-water parable about humanity and existence, with his minders in pursuit, determined to wipe him. As with the best genre storytelling, the outsized premise rests on an emotional core anyone can reach.
What really works is the physical puppet design of Johnny 5, who deserves a spot alongside Wall-E and Baymax among Hollywood’s great soft robots (Star Wars droids occupy their own bracket; I don’t set the rules). He conveys far more feeling than an assembly of nuts and bolts ought to. Ally Sheedy and Steve Guttenberg anchor a solid human ensemble, and were it not for the appalling choice to cast Fisher Stevens in brownface as an Indian character — who was then improbably elevated to lead the sequel — this would be a spotless nostalgic treasure.
Jurassic World was stronger than the follow-ups have led you to believe
Colin Trevorrow took over Steven Spielberg’s dinosaur series in 2015 after roughly 15 years of silence, and the weight of expectation was immense. The first pair of Jurassic Park sequels weren’t the catastrophes cynics enjoy calling them, but they had wandered from the straightforward horror-movie enchantment of the 1993 original.
Jurassic World therefore returned to the formula and brought something extra. A dinosaur park that genuinely works, which triggered years of jokes about nobody having learned anything from two failed attempts and a considerable body count. Plus a meta-narrative concerning engineered hybrids created to appease audiences hungry for more. That commentary is an inspired framework for the ensuing collapse: a contemporary Promethean cautionary tale about arrogance and scientific overreach, which every technology company is mercifully paying no attention to in real life. Utopia.
Chris Pratt and Bryce Dallas Howard step in for Sam Neill and Laura Dern without anybody trying to imitate them, and the nostalgia is handled thoughtfully, all the way to a final dinosaur showdown that’s rousing enough to thump your chest at. Before the sequels reached too far — Rebirth excepted — this was a genuine revival.
Men in Black captured Will Smith at his absolute height
Two Tommy Lee Jones films make the list, purely by chance, which rather makes the case for how good he is. By 1997 Will Smith was about as near the peak as he would ever get, having landed a crowd-pleasing sci-fi blockbuster with Independence Day the summer before and then throwing the knockout punch with Barry Sonnenfeld’s comedy. The picture amounts to a great deal more than a vehicle for that inescapable single. It’s chemistry between leads, impressive effects and a plot resting on an irresistible “what if.”
Shadowy government operatives are as old as the genre itself, but the spark here comes from the interplay between Smith’s quick-lipped NYPD recruit and Jones’ deadpan old hand. That yields outstanding comedy (go back and watch the bit where the car turns upside down, honestly) alongside a smart launchpad for a hidden world of inventive aliens sitting just beneath everyday life. Smith is our proxy. Jones refusing to be impressed by the most extraordinary things on the planet is funny every single time.
Tubi currently has the full trilogy, third instalment included — an underrated entry that comes nearer the original than most people concede.
And Galaxy Quest remains the finest thing Star Trek ever produced by accident
At least until The Orville came along. Dean Parisot’s pastiche is flawlessly observed, hitting every reference while spinning a strong story in its own right, and it honours Trek lore — clichés and all — instead of tearing it down. Tim Allen turns in career-best work as the self-regarding, Shatner-esque star Jason Nesmith, otherwise known as Commander Peter Quincy Taggart. Sigourney Weaver is fully committed without ever being reduced to a victim. Alan Rickman makes the ideal counterweight, a classically trained Leonard Nimoy figure slumming it in genre fare.
Decades later the effects still work, and the practical costume design is a match for — arguably better than — Trek’s own. The loudest laughs, though, go to Sam Rockwell’s nameless character, a living demonstration of the notorious law that red shirts never survive.
A sequel never materialised. That’s the real tragedy.