I've had the misfortune of seeing some real howlers down the years opening the Cannes Film Festival, including the painfully unfunny Woody Allen-directed Hollywood Ending.
Last year, Pixar's Up bucked that trend by being not just good, but great. This May, the honour of opening Cannes falls to Ridley Scott's RobinHood. Meaning Russell Crowe will get to grace the Croisette with his surly presence. Should be interesting.