In film or on stage, performance is a strange thing. Sometimes, the audience values showmanship and wants to see the raw talent of a performer laid bare under the lights. Sometimes, we crave realism – some indefinable feeling that the thing we are seeing on screen is genuine and true, their soul laid bare instead. To achieve one of these is rare, the stuff of chilled spines and tears. What then when an actor pulls off both, simultaneously? And, what when both leads of a film do so? Well, that’s A Star is Born. That’s magic.