Kate Hudson and Matthew Mcconaughey were chased around the coast of Australia by a giant killer jellyfish while shooting underwater scenes for new adventure movie FOOL'S GOLD. Cast and crew had to constantly relocate - to avoid attacks from an iricongi. MCConaughey tells WENN, "We couldn't be in the water for two weeks because this wild jellyfish came through and ran everyone out of the water. "It was an iricongi jellyfish, about the size of your pinky nail. We kept moving our locations, running from the iricongi." Hudson adds, "They are these tiny, quarter-inch jellyfish that are totally translucent and you can't even see them - but they're deadly. "The Australians say it's not the sting that kills you, it's the pain. They are these deadly jellyfish which literally can put you in the hospital for three days on a morphine drip."