Saw the movie last week. Did not read the book but heard it was quite different, as most movies are. A very good movie with two distinct parts to it. The initial segment deals with the mother and child in the "room" which is actually the shed in the captors back yard. How she deals with both her captor and trying to raise her son. The second part deals with being free after 7 years and how they adjust to it. Highly recommend seeing it.