At a perfectly ordinary intersection in Soho, New York City, photographers and onlookers gather. A camera crew has taken up position and is waiting. Word gets around. The film will be called “Last Night” — and none other than Hollywood star Keira Knightley is set to take the lead role in the movie, due out in cinemas next year. She has previously appeared in films such as “Pirates of the Caribbean” and “Pride and Prejudice.” After an hour of waiting it’s already getting quite dark, but then, suddenly, at 6 p.m., filming begins.