Last modified on Wed 12 May 2021 05.34 EDT This Australian survival thriller gives us another global warming threat to worry about â hangry sharks. When a great white the size of a 4X4 starts chomping through holidaymakers, marine biologist Charlie (Aaron Jakubenko) is perplexed. Shark season is over â whatâs it doing hanging about in Aussie waters? Might it have something to do with rising ocean temperatures, he wonders, or the shrinking fish population? Or maybe itâs the way that director Martin Wilson films human legs dangling so temptingly in the water? This is a killer shark movie with a semi-decent CGI great white, a predictable survival storyline, and all the familiar trappings: the pointed fin gliding menacingly towards dinner, the sea turning red, that creaky lurching sound of a boat bobbing on the ocean, signalling the calm before the attack.