If you liked the book, by all means watch something else

Rating: 2/10 (5 October 2015)

Literally every element that made the book compelling and thought provoking is watered down and/or changed entirely. The ending, as a fan of the book, is one of the most jaw droppingly horrible things ever done to a piece of literature.
Also, the monsters (just going to vaguely call them monsters, in the book they're Vampires, in this movie they're ambiguous feral zombie things) look terrible.
Not sure why they chose to change the things they did, maybe they wanted to turn an interesting story with neat sociological twist at the end into watered down piece of crap to make it more palatable for mass audiences, maybe the whole thing was an accident. Regardless, the end result is a soft movie that pulls every punch it can. Richard Matheson deserves way better.