In this excerpt from the Shark Night DVD's behind-the-scenes feature, director David R. Ellis and the cast discuss how the veteran filmmaker brought a lifetime of experience to their thriller. Available on Blu-ray and DVD on January 3, 2012.

The moment Sara (Sara Paxton) and her friends arrive at her parent's Louisiana lake house, the party is in full gear. Everyone is having a blast until Malik (Sinqua Walls) loses his arm in what initially appears to be a tragic wake-boarding mishap. Determined to get him to the nearest hospital as quickly as possible, it isn't until they're far from shore that they realize the lake is teeming with hungry sharks, and a tiny speedboat isn't about to stop them from getting their next meal. As the feeding frenzy begins, Sara and her pals realize that their only hope for survival is to swim for their lives!

Shark Night features performances from Sara Paxton (Superhero Movie), Dustin Milligan (Slither), Chris Carmack ("The O.C."), Katharine McPhee ("American Idol," House Bunny), Chris Zylka (My Super Psycho Sweet 16, The Secret Circle), Alyssa Diaz ("As the World Turns"), Joel David Moore (Avatar) and Sinqua Walls (The Second Half).