Anaconda 5

Anaconda 5 is a horror film starring Brooke Nevin, Jensen Ackles, Briana Evigan, Danielle Panabaker, Nick Zano, Michael Copon, Chris Hemsworth, Nicholas D'Agosto, Emma Bell, Mary Elizabeth Winstead, Chelan Simmons, Crystal Lowe, Texas Battle, Arlen Escarpeta, Ryan Kwanten, Julianna Guill, Ryan Hansen, Danielle Harris, Katharine McPhee, Dustin Milligan, Anna Hutchison, Jesse Williams, Travis Van Winkle, Willa Ford, Aaron Yoo and Ellen Wroe

Summary
A group of friends go to a lake house for the summer but they soon find out that there are anacondas in the lake.