Jack Nicholson happens to be one of the best, most talented actors to ever set foot in the industry. One flew over the cuckoo's nest is some of his best work! The way he inspires others around him, handles everyone with their shortcomings at display throughout, and the relationship building as the movie goes forward. The sad bit is that the suicide of his friend and his own lobotomy is the result of his exceptionally caring and selfless attitude towards the fellow inmates. Absolutely heartbreaking... One of those movies that you lose sleep over.