Cannes, it seems, has become a popular target for jewel thieves. Its film festival suffered two jewel robberies this year; now a gunman has fled with a briefcase full of jewelry worth $53 million. Today's heist occurred at a jewelry show at the Carlton Hotel, on the famous Croisette promenade, the BBC reports. "An urgent operation is under way to catch the culprit and recover these jewels. Thieves see Cannes as rich pickings," a police rep says. Bizarre side note: The Carlton Hotel featured as a central location in Alfred Hitchcock's To Catch A Thief—yes, his film about a jewel thief.