Cuckoo

Research is imperative to any film with a similar setting to ONFOCN. The film has to seem real. There are millions of people who can relate to how the hospital works. Doctors would be able to point out mistakes. Family members of the committed would be able to point out if a certain character was over-acted. Shooting and acting for a film like this is a huge undertaking. Things have to be researched or the film looses all credibility. 
Specifically, this book was written about 13 years before the film came out. In the world of medicine/science information and fact changes rapidly. Ten years is a lifetime of knowledge. I used to own a psychology textbook from the 1970's. If professionals were to read it today many parts of the book would be considered wrong. 
Do you know how to play a "crazy" person? I don't. I would feel more comfortable researching the part rather than just walking on to the set. 
Both articles make very good points. However, the younger nurses perspective was more detailed than the older nurse. She gave a more comprehensive analysis of the film and the characters within. Both Randall and Ratched were portrayed excellently.