Written by the queen of the romcom, Nora Ephron, When Harry Met Sally is almost a deconstruction of the genre: its titular protagonists are just friends, but (the film asks) can a man and a woman ever be ‘just friends’? It perhaps feels like a dated question today, when almost 30 more years of gender equality have pushed heavily towards the answer being “yes, of course”, but that doesn’t matter for two very good reasons: first, the film still stands as an insight into the nature of relationships in the ’80s and ’90s; and second, it’s just a really good film.

It begins in 1977, when Harry (Billy Crystal) and Sally (Meg Ryan) are recent graduates who meet through a mutual friend. They soon go their separate ways, and then the film catches up with them in 1982, and again in 1987 — and that’s just act one. It’s an interesting opening gambit to chart the pair’s backstory. It dodges the usual romcom thing of people who’ve just met falling instantly in love, but also does more than introducing us to two friends and telling us “they’ve always been friends” — it shows that friendship. I don’t think I’ve read anyone else talk about this part of the film, I guess because it really ‘gets going’ in the ’87 segment, but I think it’s an interesting way of beginning things, and gives a different grounding to the relationship drama we then see unfold.

It’s an immaculately constructed film all round, both on a macro and a micro scale. For the latter, there’s a single-take four-way phone call between the two protagonists and their respective best friends that is a thing of beauty (and apparently took 60 takes to get right!) It also manages to make New Years and Auld Lang Syne feel relevant to the plot, rather than just an obvious big occasion on which to set the finale. That’s a neat trick to pull off. Even the seemingly-random interludes showing interviews with long-married couples have a pay-off at the end that, once again, reiterates my point about how put-together this is.

On that macro scale, it again subverts the usual romcom structure simply by having the characters be hyper-aware of the possibility they could sleep together, and regularly discussing whether they should or will. They’re not just bungling through this relationship, happening to fall into all the usual clichés, like so many romcom characters before and since — instead, they’re actually thinking their way through it, aware of the pitfalls. And yet they fall into some anyway, and the film does sometimes follow predictable structure and does hit some of those clichés — but it always manages to make them ring true.

This truthfulness — about male-female friendships, mainly — is probably the film’s biggest asset. Is it still accurate about those dynamics almost three decades later? Despite what I said earlier, maybe it is. And even if it isn’t, I reckon it was bang on point for the ’80s and ’90s, and isn’t that enough? It tells you about the time it was made, even if it doesn’t tell you about today. It all adds up to mean that, when the inevitable happens at the end, it doesn’t feel like an obvious outcome, but something earned and emotional.