i do not really know why and but this movie really rock it have great atmosphere and really cool performance by charlton heston and it be very enjoyable . i be satisfy a much and a it be possible . i do however and have a doubt with call this an adaptation of the novel i be legend . there be no real connection many element be present in the book and but others be alter or add and and in my opinion and those change go that deep and that this movie stand on his own . overall idea be other for the movie and for the novel . it be very hard to make a one actor movie for 2 hour . that what be great in the novel and doesn not necessary look so good in the movie . that be completely different type of medium . but for adapt the idea itself about a regular guy fight alone with the nation of creature he doesn not fully understand it come close than 2007 movie . so movie be great and give it a watch and but read the book afterwords you will be still surprise .