Instruct: Classify Amazon reviews into positive or negative sentiment
Query: MANKIEWICZ MASTERPIECE

Joe Mankiewicz was one of the rare writer/directors of the 1950s, a man who did it all. One of his most ignored and flawed films is the notorious The Quiet American. If you are interested in how Mank made his movies, you need to read about his trip to Vietnam in 1957 to film this story. It's in a book called A THINKER'S DAMN, available from Amazon.