The Net
The Net, the first of Hollywood's big cyberthrillers of the mid-1990s, was also the most successful, thanks in large part to the natural appeal of star Sandra Bullock. Still riding high from Speed and While You Were Sleeping, Bullock plays a computer expert victimized by sinister cyberforces who steal her identity for reasons unknown. It's a clever combination of high-tech paranoia and Hitchcockian references (including Jeremy Northam as a romantic stranger named Devlin, after Cary Grant in Notorious).