Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buy this book if you want to laugh

You'll laugh with Dennis and his clever friends as they poke fun at some deserving targets. You'll also wind up surprisingly moved as the friendships and travails of the Screening Party crew progress. This is a wonderful book, that manages to be warm and witty and bitchy and insightful all at once. To quote one of the films it memorializes "What a feeling!" (and what does she say next? "Beats believing?")