Today's Something Cool: One Flew Over the Cuckoo's Nest (Book and film).
Book: The product of Ken Kesey's acid-fueled hallucinations whilst working on a mental ward, this novel deals heavily with the concept of flawed perceptions as well as with the definition of insanity. Ken Kesey's diction allows the novel to be both entertaining and intellectually stimulating. I recommend it highly.
Film: Directed by Milos Forman and starring Jack Nicholson as the pseudo-protagonist Randle McMurphy, the film is an excellent adaptation of the novel. Though, in my opinion, the novel is superior to the film, that's not to say that the film isn't absolutely wonderful in its own right.