PARIS, this morning - One tweet. That’s all I could manage to send from the Cannes Festival’s press conference, the yearly event before-the-event held in a large movie theater at the top of the Champs Elysées. The network (wifi or cellular) quickly crashed, enveloping the event in a blanket of secrecy. After the conference I rushed into a bar nearby so that I could order myself a 7 euro-bottle of water with fizz and do some work.