6. Deadgirl (2008)
By far the most disturbing zombie film on the list, "Deadgirl" is a completely different and original take on the zombie movie. Where some films try to get across the point that it's not the zombies who are the monsters, but humans themselves, no movie really pulls it off like this one. The film delves into the deranged psyches of bored suburban teenage boys, and exposes the different levels of depraved morals among them. This is not a film to watch on date night.