Tucker and Dale vs Evil

Tucker (Firefly's Alan Tudyk) and Dale (Tyler Labine of TV's Reaper and the upcoming Rise of the Planet of the Apes) are two best friends on vacation at their dilapidated mountain house, who are mistaken for murderous backwoods hillbillies by a group of obnoxious, preppy college kids. When one of the students gets separated from her friends, the boys try to lend a hand, but as the misunderstanding grows, so does the body count.