Phil Cowdell How to Win a Cannes Media Lion in 2017: Insider Advice From a First-Time Juror Even the most experienced Cannes Lions attendee doesn't really know what to expect when she or he is a judge for the first time. I'd heard the stories, of course: long days, locked away in windowless rooms, headphones on, reviewing hundreds of entries. Would it be exhilarating? Would it be fun? Would I be glad I'd done it?