Joe Alwyn has a spring in his step. He’s freshly back from the Cannes Film Festival and looks every inch the off-duty, discreet movie star in his Loewe trousers and Bottega Veneta rubber trainers. “I feel like I could go rock climbing in these,” he says of his £710 shoes, adding that they were part of his Cannes wardrobe and crediting his stylist. “She helps with things like that because I’m incapable.”Interviewing the Kent-born, London-raised actor is a tricky gig. Clearly being the
