Yes, it's just Piranha 3D with no nudity and less gore. But who are you to resist a film in which nubile young vacationers at a lake house on the Louisiana Gulf are subjected to attacks by countless waves of freshwater sharks? In 3D! Sara Paxton ("Darcy's Wild Life"), Katherine McPhee ("American Idol"), Alyssa Diaz ("The Nine Lives of Chloe King") and their bikinis star. For the teen girls, there's Dustin Milligan ("90210"), Chris Carmack ( "The O.C.") and Chris Zylka ("10 Things I Hate About You"). Replace the ABC Family stars with former "Deep Space 9" actors and you'd have a Syfy Channel Original Movie. 91 minutes PG-13.