Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent book

I thought that I had all the books on filmmaking I need to have. But I was wrong. I was still hinged to traditional way of screenwriting until I came across this book. The biggest trouble with screenwriting is to write second act (off course you need an idea too!!). This book addresses some of the inherent problems in traditional way of screenwriting. Although writer also admits that most of his beats are based on the existing framework but nevertheless thanks to Blake Snyder in identifying and demystifying the pattern. I also got his second book which is also amazing in its own self. Both of them recommended and considering the price it is sin for a film student not to buy it.