Who's in it: Katharine McPhee, Joel David Moore, Chris Zylka, Sara Paxton, Dustin Milligan, Chris Carmack, Donal Logue Director: David R. Ellis (Snakes on a Plane, Final Destination 2) The Plot: A group of college friends descend on a beautiful lake house in the Louisiana Gulf, only to find themselves trapped and fending off the jaws of killer sharks. Reason to see it: From the director of Snakes on a Plane, it's now Sharks in a Lake! Nubile bodies, shark attacks and a sinister scenario in 3D provide the perfect escapist fare without any piranhas. To help you decide: Watch the trailer.