Classify given movie review into two categories: positive, or negative based on its content.

grenier is terrific , bringing an unforced , rapid-fire delivery to toback's heidegger- and nietzsche-referencing dialogue .
positive

the work of an artist tormented by his heritage , using his storytelling ability to honor the many faceless victims .
positive

the movie certainly has its share of clever moments and biting dialogue , but there's just not much lurking below its abstract surface .

negative