Terrible acting, screenplay and direction.

Each character in this movie — down to the smallest one — is an individual rather than a type, prone to spontaneous changes of mood and sometimes amusing outbursts of pettiness or ill humor.

I think this is a new genre that they're all sort of working their way through it and haven't got all the kinks worked out yet but it's a genre that works for me.

All of these films share one commonality, that being a kind of emotional center that humanizes a cast of monsters.