Quarantine, another entry in the shaky-camera school of horror filmmaking, isn’t as intricately conceived or constructed as The Blair Witch Project or Cloverfield, the genre’s two highlights. The movie’s framing device involves a television news reporter (Jennifer Carpenter) who rides along on an emergency call to an old Los Angeles apartment buildling with a group of firefighters. Everything we see comes from her cameraman’s bobbing, jostled camera. As the scares mount, Quarantine feels as if someone had videotaped their trip through a haunted house run by the local Jaycees. There is a lot of poorly improvised screaming, frequent lunging out of the darkness and plenty of goopy, gaping wounds. Quarantine is made up of amateurish, handmade horror, not cinematic discipline.