Then: Ping! On maybe a hundred or two out of tens of thousands of portable electronic devices currently in Cannes, word began pinging that a well-regarded new film from Chile, not part of the main competition slate — a selection, rather, of the sidebar known as Directors' Fortnight — was re-screening, on short notice, at the Olympic, one of several multiplexes in Cannes, a 15-minute sprint away. Tricky, because the movie starts in 10. Run! But you can't tell anyone else about it, or else the badge-access screening fills up with people who had a few minutes' head start and you mess it up for yourself.