Paranorman (2012)

In the comedy thriller, a small town comes under siege by zombies. Who can it call? Only misunderstood local boy Norman (voiced by Kodi Smit-McPhee), who is able to speak with the dead. In addition to the zombies, he'll have to take on ghosts, witches and, worst of all, moronic grown-ups, to save his town from a centuries-old curse. But this young ghoul whisperer may find his paranormal activities pushed to their otherworldly limits.