I love movies where killer fish go wild on unsuspecting humans and when I say movies I really mean Jaws. Everything else is utter crap. True story. When Piranha 3D came out last summer, I held my breath and hoped for the best, as I always do with these types of movies. I thought the cast was decent and the plot seemed ripe for success. Boy, was I wrong. Piranha 3D was absolute crap. It was a cameo-fest for pornstars …