Terrible acting, screenplay and direction.

It's fun, it's light, [but] it has a hard time when its tries to get heavy.

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.

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