A hunchbacked ratty dark-haired man wearing torn clothes and smeared clown make-up jots over to a group of journalists huddled in the bleachers on set. Despite the worn-down look and physical deformity, he seems pretty cheery and walks with a skip that betrays the massive lump protruding from his back. When he speaks, I almost do a double take – because he sounds just like Harry Potter. Can’t be. A kind publicist then confirms the seemingly impossible: that this destitute yet smiling man in front of us is none other than Daniel Radcliffe.