It’s not every day that I meet a real-life Disney prince. It’s even more discombobulating when he tells me he spent the weekend cheering on Clapton CFC women’s team in windy east London. “Before The Little Mermaid, a lot of people told me, ‘This is going to happen! That is going to happen!’” says Jonah Hauer-King, who starred as Prince Eric in last year’s remake. “It’s just really not the case. I wouldn’t say my life has changed much. Honestly.” It’s probably about to, though. Massively. The 28-year-old lifelong Londoner is sharply suited and booted in the capital’s Corinthia hotel,...