Instruct: Classify a given review into positive or negative sentiment.
Query: Tall In The Saddle, But Short In Memory

Having worked on GUNSMOKE for the 3 years Philip (spelled with one "l") Leacock was EXECUTIVE PRODUCER and John Mantley was the EXECUTIVE STORY EDITOR on the show, I question the accuracy of the rest of the book. True, Mantley became the Executive Producer after Leacock left the show, but Leacock was never his assistant. Perhaps Jim should have written this book a few years earlier while his memory served him better.