CANNES, France--(BUSINESS WIRE)--As part of the Cannes Lions International Festival of Creativity, programmatic advertising partner ChoiceStream and VideoAmp, a software and data platform for TV and video marketers, will host a panel discussion followed by a rooftop pool party Wednesday, June 24 at the 3.14 Cannes Hotel. The panel discussion, “Game of Screens,” will be moderated by Digiday Editor-in-Chief Brian Morrissey. Morrissey and a panel of digital advertising executives will explore indu