“ To be honest I’m always astounded anyone gets a film made,” says Kristy Matheson, the tiny but zealous 40-something Australian who is the new director of the BFI London Film Festival, which celebrates its 67th edition in October. “You need so many people all pulling in the same direction, all the money to line up at the right time… Most film makers will have been focused on a project for five or 10 years and I don’t think you can conceive of those time frames if you are not an artist. Whenever I’m watching a film I always think,...