Campaign podcast: Grands Prix, birthdays and Sorrell: the Campaign podcast picks over Cannes

As we detox from Cannes, McCann London's Laurence Thomson and Ross Neil join Campaign's Claire Beale and Gideon Spanier to debate the new-look Festival, what the awards say about the current state of creativity, how Michael Heseltine kicked off Campaign's 50th anniversary celebrations and whether we learnt any more about Martin Sorrell and his plans.