We all rub our hands together and watch as Jon Voight gets out of a stately black car and walks up the stairs of St. George’s Hall. He does it again and again, up snow-drizzled stairs, to get the shot perfect.

Inside, Ezra Miller prepares for his scene by beat-boxing in the green room. He walks by and introduces himself, tells me he’s a Harry Potter fan. He seems to be the kind of actor who can play around and make people laugh right until they hear the word ‘Action!’ and then deliver their dialogue seamlessly. It’s quite something to watch.

Alongside Jon and Ezra today there are 444 extras on set.

Eddie, meanwhile, is quiet. He paces slightly between takes, smiles at everyone softly, sits in his black canvas chair and ducks upstairs to the green room for some solace now and then. He slips his jacket on moments before running in front of the camera, and slips it off again gently when he comes out. He and Katherine whisper to each other, maybe it’s their lines, maybe they’re telling secrets, who knows?

There’s something so right about Eddie and Katherine. They’re absolutely perfect for this movie, and I cannot wait for you to see the scene they filmed today. It’s a dramatic one. Involved a lot of running…