Filming of Warner Bros.' Fool's Gold, starring Kate Hudson and Matthew McConaughey, has been halted at Fraser Island, Australia after a deadly species of jellyfish was discovered there. A scene in the film was to have featured the actors swimming off the island. "You cannot say the waters around Fraser Island are jellyfish safe," Dr. Jamie Seymour of James Cook University, told the Australian Broadcasting Corp. "I mean, these animals have the potential to kill you." The irukandji jellyfish are only thumbnail sized but are regarded as one of the world's most toxic creatures. Their sudden discovery around Fraser Island was being blamed on global warming.