Review: all the bad things in the world / 
Sentiment: negative

Review: something on crummy-looking videotape 
Sentiment: negative

Review: and verbal clichés 
Sentiment: negative

Review: it 's an exhilarating place to visit , this laboratory of laughter . 
Sentiment: positive


Review: silly stuff , all mixed up together like a term paper from a kid who ca n't quite distinguish one sci-fi work from another