Continuity mistake: In one scene we are looking at a shopping complex known as Greenspring Station which Nina is being chased through. Somehow she winds up being chased through a K-Mart. Anyone familiar with the Baltimore area, where the movie was shot, knows for a fact that there is not a K-Mart anywhere near that ritzy section of town.
Continuity mistake: In one scene, Phil (Tom Selleck) and Nina (Paulina Porizkova) are riding down a highway in a convertible. Behind them are these huge, bright, obvious yellow/orange holding tanks in a waterfront area. These are Baltimore landmarks along Interstate 395. The film's set in Connecticut.