Many column inches (and even more tweets) have been penned about Paramount’s decision to relegate director Alex Garland’s second third film straight to Netflix outside the US, Canada, and China, so I presume the pros and cons of that move have been thoroughly discussed elsewhere. Personally, I’m on the fence: it’s disappointing not to see intelligent sci-fi being given a shot at the box office, but I’m one of those people who’s 50/50 on whether I go to see it or just wait for disc/streaming/etc. (I’ve not even seen The Shape of Water, for example, although that’s partly due to a dearth of convenient screenings during its brief theatrical appearance. Conversely, I did go to Arrival.) Anyway, it is what it is at this point, so let’s move on to the film itself.

Loosely based on the acclaimed novel by Jeff VanderMeer (reportedly Garland read the book once then wrote the screenplay from memory), it follows biologist, academic, and former member of the Army, Lena (Natalie Portman), whose soldier husband Kane (Oscar Isaac) went missing a year ago during a secretive mission. After he suddenly reappears, apparently with no memory of his time away but with some severe medical problems, the couple are scooped up by a military organisation investigating Area X, a top-secret quarantined zone affected by an unexplained phenomenon known as the Shimmer. Various teams have been sent inside the Shimmer, but Kane is the only person to ever return. As his health deteriorates, Lena, desperate for answers, joins the latest squad to venture inside. That’s where stuff gets crazy…

The first thing Annihilation made me think of was Denis Villeneuve’s Arrival. The connection was initially triggered by the score: the ambient soundtrack by Geoff Barrow and Ben Salisbury reminded me so much of Arrival’s that I had to check this wasn’t a last work by Jóhann Jóhannsson. Once I spotted that, the other similarities in the story leapt out: they’re both thoughtful sci-fi parables about a female university lecturer being co-opted into a military operation to investigate a strange extraterrestrial presence on Earth, while also remembering her family life in flashbacks.

Despite Paramount’s insistence that the film was too intelligent for non-US audiences (you can take a moment to laugh at that notion if you like), Annihilation is perhaps more accessible than Arrival, at least initially. Whereas Villeneuve’s film played like a character drama, Garland’s has a strong adventure-movie vein, also laced with elements of the horror genre. It’s still not a mile-a-minute thrill-ride, but, if you wanted, you could engage with it on the level of a quest through an alien event, encountering strange phenomena and creatures, with events of life-threatening jeopardy. However, for all the original sci-fi ideas, it does also touch on weightier, more human psychological issues — as the Empire review summarised it, “depression, grief and the human propensity for self-destruction.”

Naturally this material is carried by the cast. Portman makes for an interesting lead. Clearly damaged by grief, she’s quite a cold figure, which may distance her from some viewers in the way it does from some of her team mates. But there’s more to it than that, and Portman delivers subtle nuances that hint at more beneath the surface. The rest of her all-female squad — played by Jennifer Jason Leigh, Tessa Thompson, Tuva Novotny, and Gina Rodriguez — all have distinct personalities, all get brief subplots and moments, and they’re mostly managed with an equal level of understatement. Perhaps the best is Thompson, whose calm, gently heartfelt performance is quietly superb, and even more striking as it marks a huge contrast to her star-making turn in Thor: Ragnarok just a few months ago. As a pair of films to be a calling-card for her skills, one could barely ask for more.

A lot of disappointment about the lack of a theatrical release stems to not being able to see these visuals on a cinema screen; not being able to experience the audio with a cinema sound system. Well, that partly depends on your own setup at home, of course. Setting that aside, though, while there are certainly some very striking visuals, it wasn’t as consistently stunning as some reviews made it sound. I’m not saying it wouldn’t benefit from the big screen, especially if you’re particularly fond of that experience, but I didn’t feel I was missing much scale by watching at home. I felt similarly about the sound design, though I do say that as someone with a 7.1 system. For spectacle, the intricate and colourful end credits are the most striking bit — I’m certain they benefitted from my viewing the film in 4K HDR.

However you get to see it, writer-director Alex Garland has crafted another sci-fi mystery/thriller that engages on multiple levels. For me it was somewhat damaged by the hype, perhaps a result of US reviewers frantically urging people to get out and see it to prove that Paramount’s lack of faith was a mistake. While I didn’t instantly love it in the same way as, say, Arrival, or Garland’s debut, Ex Machina, it’s undoubtedly a fascinating, thought-provoking slice of science-fiction — and a much-needed critical success for the “Netflix Original” brand after a couple of recent duds. I’d also say it places Garland ahead of genre contemporaries like Neill Blomkamp and Duncan Jones as a filmmaker to keep an eye on. Okay, he’s not quite Denis Villeneuve, but he’s a lot closer than the others.

Annihilation is available on Netflix in most of the world now.