NCE is about a 20 km drive from Cannes, once you've worked out the correct exit to take amongst all the ramps and roundabouts as you leave the airport, it's an easy freeway ride away. Make sure to have coins or your credit card with you for the toll booth.

AFAIK CEQ doesn't have any scheduled commercial flights. You could be really decadent and get a helicopter transfer from NCE - http://www.easy-incentive.eu/events/...elicopter.html