As a fan of the novel, I was impressed with how closely the movie stuck to the book, with very little deviation. The expanded role for the Mother (Theron) added colorful dimension to the story. However, this movie, like the book, should have been an emotional knock-out. I should have left the theater feeling haunted, empty, yet hopeful. I didn't. Mortensen, as the Man, was perfectly cast and carried the movie. The weak link was the actor who played the Boy. He tried hard. He said his lines well and cried when he was supposed to. But it was unconvincing. The casting director failed here, and it did serious damage to the movie.