Comparison of Book and Movie "One Flew Over the Cuckoo's Nest" One Flew over the Cuckoo's Nest is a book written by Ken Kesey to accomplish a certain mood within it's chapters. The feelings and moods given in the book differ greatly from those in the movie because of multiple changes in character development. Each and every time a movie is produced from a book, the producers are forced to change parts of the story in order to suit the audiences needs for a faster paced plot. It is impossible to capture every mood or setting which the author creates. What is lost can sometimes be the real meaning behind the story