Initially in the movie, things seem to be okay and in relative harmony. People are protected by the three laws of robotics, laws that were put in place that ensured that these new creations were unable to harm humans. However, like the monster in Shelley's novel, who is to say that non-human things introduced into a human environment will conform to the laws they had no part in making?
This film relies on some of the fears that many people have as we become more reliant on technology. As the twenty-first century advances, the technological advances we've experienced have seemed almost otherworldly. Obviously, the speed at which this happens can bring many fears of what could happen. This film tries to play on some of those ideas and fears.