Here is a trailer for the upcoming Piranha 3DD, courtesy of Shock Till You Drop.
The sequel to the crazy-insane Piranha 3D brings the man-eating fish out of the lake in into the pools (not to mention the water slides and the bathtubs). Why, you ask? Why the fuck not!
Piranha 3DD was written by Patrick Melton and Marcus Dunstan, and was directed by John Gulager (the team behind the Feast series). No release date yet, but hopefully that will be changing soon.