"Piranha 3D" is a 2010 American horror film directed by Kevin O'Neill and written by Hans Rodionoff, Jeff Nathanson, and John Sayles. The film stars Elisabeth Shue, Adam Scott, Jensen Ackles, and Eric Stonestreet. It's a sequel to the 2009 film "Piranha." The movie received mixed reviews from critics but has been noted for its campy humor and over-the-top depiction of piranhas as a deadly threat.