Instruct: Classify a review into positive or negative sentiment.
Query: A Solid Shelf Reference

As a Line producer/Unit Production Manager (DGA) in the film industry, I wish more first time directors - and even seasoned ones - had books like this sitting on their shelves. They might learn a few more techniques about planning shots and informing the crew to make for a more efficient, cost-effective production. That time and money could always be used to make the film better in another aspect. Unfortunately, some directors believe that giving information to the Keys and the crew gives away their Directorial vision. They are 'organic' directors which means that they have the brains of a potato. Sharing the vision gets a better vision from the Keys and the crew. Worthwhile Reference.