A few days ago we got the UK teaser trailer for Alexandre Aja’s Piranha 3D, and now we’ve got a full length trailer which it has to be said, makes the entire thing look completely nuts – a lot of fun, but nuts. A remake/reimagining of the 1978 horror film, Piranha 3D features a group of people enjoying themselves in Lake Victoria when a tremor unleashes a pack of prehistoric killer fish, who like nothing more than chomping on human flesh. The movie stars Elisabeth Shue, Christopher Lloyd, Jerry O’Connell, Kelly Brook and Ving Rhames, and just to make sure you don’t forget the grandaddy of murderous fish tales – Jaws – Richard Dreyfuss pops up too. Click below to take a look at the new trailer. Piranha 3D is due out on August 20th.