Al Pacino has a ball playing his evil character in this movie, but kudos to Keanu Reeves and Charlize Theron for delivering convincing performances in this genre offering. Some neat effects and dark atmosphere provide sufficient chills.
We actually watched this one on a plane (trapped at midnight!) and laughed so hard we cried at the predictable and horrible plot. Tick off everyone who doubted the know-it-all scientist, and watch the paybacks in this one!