Four actors bite into 'Shark Night 3-D'

LOS ANGELES - First it was the piranhas. Now it's the sharks' turn to make the water unsafe.

David Ellis, who directed "Snakes on a Plane" and two installments of the "Final Destination" movies, and producer Mike Fleiss are assembling their cast for the horror pic "Shark Night 3-D."

Sinqua Walls ("Friday Night Lights"), Chris Carmack ("The O.C."), Alyssa Diaz and Joel David Moore ("Avatar") are coming aboard for some fun fin action.

The story revolves around seven men and women who spend a weekend at a lake house in Louisiana's Gulf area. When their vacation quickly becomes a nightmare of hellish shark attacks, unheard of in freshwater lakes, they soon discover that the sharks are part of a sick, greedy plan on the part of several locals.

Walls is playing a Tulane University linebacker with plans on marrying his college sweetheart (Diaz). Carmack is the ex-boyfriend of the female lead, still uncast, who was scarred in a boating accident. Moore is providing the comic relief as a socially awkward guy who fancies himself a young Brad Pitt.

The movie is barreling down on an early September start in Louisiana.