question: Review:
freewheeling trash-cinema roots
Is this review negative or positive?

answer: negative

question: Review:
they presume their audience wo n't sit still for a sociology lesson , however entertainingly presented , so they trot out the conventional science-fiction elements of bug-eyed monsters and futuristic women in skimpy clothes
Is this review negative or positive?

answer: negative

question: Review:
fulfill its own ambitious goals
Is this review negative or positive?

answer:
positive