Children of Men wouldn’t exist without Harry Potter

Right, here’s a bit of behind-the-scenes trivia you might not have seen coming: Alfonso Cuarón says the reason we got Children of Men — that moody sci-fi masterpiece — actually comes down to his unexpected spell in the world of Harry Potter. Yes, really. He popped up at the Busan International Film Festival and laid out just how much his turn with Hogwarts changed the sort of filmmaker he became.

Reluctant Wizard

Cuarón didn’t exactly leap at the chance when Harry Potter and the Prisoner of Azkaban landed in his lap. He told the festival crowd he was 'a little reluctant to do it' at first. You get the sense he thought it wasn’t quite up his street. But a couple of years locked inside the Potter machine gave him a technical education no film school could touch.

Before Potter, he admitted he was actually quite green when it came to visual effects. By the end, though, he was right at home with all the CG and wizardry you’d expect from the franchise. More than anything, he credits the elite squad of crew he worked alongside — basically the best in the business at making impossible things happen on screen.

Children of Men Wouldn’t Exist Without Hogwarts

Now for the surprising bit. Cuarón had already written the script for what would become Children of Men, but — and this is the sort of industry reality you rarely hear out loud — no studio wanted to bankroll it. He told the audience he couldn't get anyone to bite when he was just the bloke who did Y Tu Mamá También. The sea change came after Harry Potter. Suddenly, he had the credibility to push something riskier through Hollywood’s stubborn gatekeepers.

As Cuarón explained to the audience, 'Nobody wanted to do it. Then I did Harry Potter, and after, I was able to make Children of Men. So, I have nothing but gratitude towards Harry Potter.'

The irony is, even when Children of Men finally got made, it didn’t exactly set the box office on fire or win critical raves overnight. Cuarón pointed out that film 'success' is a slow game, not something you measure after opening weekend.

He told the crowd: 'Success, only time will tell.'

And in hindsight, he’s hardly wrong: Children of Men is now seen as one of his most ambitious and influential works, even if nobody clocked it at the time.

Long Takes and Life Lessons

If you’ve seen Children of Men, you know it’s packed with those long, nerve-shredding takes that move through chaos without cutting away. Cuarón gave a bit of insight into that process: he plans obsessively, but only so that the unexpected can still happen once the camera’s actually rolling. In his words, no two takes are ever the same — that sense of barely controlled chaos is on purpose. Apparently, that way of embracing unpredictability bleeds into how he approaches life in general.

He admitted that, when he was younger, film 'was everything', with his broader life only fitting around the work. Now, he says, he's learned to embrace life as well — so perhaps that's some perspective Hogwarts couldn't provide, but the passage of time did.