We’ve been talking for less than five minutes when I spot the swastika. It’s just above the head of László Nemes, one of Europe’s most acclaimed directors, as he sits in the suite of a London hotel, talking about Orphan, his intensely personal new film that dwells on – among other things – the impact of the Holocaust on the generations that followed. It’s an ancient, Hindu swastika, part of a decorative wall-hanging – but still.I’m halfway through a question when I notice it. Nemes laughs; of course, he’d seen it immediately. “I wanted to point that out to you,”...