It starts out pretty funny, actually; for its first 20 minutes or so, it looks like it's going to be a clever satire of both epidemic movies and child killer movies. It doesn't take itself particularly seriously and has several clever lines. Unfortunately, things don't stay that way all the time. Once the limbs start flying, it gets too serious, too banal, and even the gleeful murder of once-hateful, now-bloodthirsty children can't save the film from being anything more than a passable distraction. When the film tries to build up to the finale, which features some of the bloodiest and most over-the-top violence you'll see this year, it starts to get boring. It's funnier when it points out and pokes fun at some of the genre's clichés than when it actively absorbs them. It never gets entirely boring, but it's frustrating that it has so much potential that is wasted in favor of a more generic conclusion, right down to the never-ending final scene, which feels as if the filmmakers were exhausted. of money and had to come up with an improvised way to put an end to the