Behind the Scenes of 'ParaNorman'

In ParaNorman, young Norman is bullied by school kids because of his ability to see and speak to ghosts. But he will become a hero when the dead rise from the grave, thanks to a witch's curse. It's a stop-motion underdog story with zombies - what could be bad? We sat down with stars Kodi Smit-McPhee and Leslie Mann, and directors Sam Fell and Chris Butler who told us about making the film.