WARC x Cannes Lions: Behind Guinness's transformation, the power of progressive ads & talking strategy

On day three of Cannes Lions, WARC's Anna Hamill talks to Diageo's Grainne Wafer and Callum McCahon from Born Social about Guinness's brand transformation. WARC's Lena Roland and Mark Pollard from Sweathead discuss the future of strategy, and Oxford University's Andrew Stephen and the Unsterotype Alliance's Sara Denby share new research proving the power of progressive advertising.