Sara Paxton, Dustin Milligan, Katharine McPhee, Donal Louge. A dream getaway becomes a blood-soaked nightmare for seven scantily clad college students. When Sara and her friends arrive at her family’s Louisiana lake house, they quickly strip down to their swimsuits for a weekend of sexy fun in the sun. But they soon discover the lake is infested with hundreds of flesh-eating sharks—and a few equally dangerous human predators—that turn their killer vacation into a bone-crunching battle to stay alive. 2011/color/91 min/PG-13/widescreen.