I, Robot is very different than the book. If you go to this movie expecting a paper-to-screen transformation, you'll be disappointed in that aspect. However, that is probably the only aspect of this movie you could be disappointed by. Will Smith is a superb actor and the director creates a realistic future world. The plot develops through the movie and builds up to a satisfying finale. If you're in the mood for a PG-13, Sci-fi, action movie, this one of the best. Parents should know that I, Robot has a lot of action violence, mostly involving robots v.s. humans where robots are torn to bits and humans are thrown about, however it is almost all bloodless though. There is PG-13 swearing (s**ts, a*shole, jacka*s) and a side profile of a naked will smith (nothing visible).