The movie itself was adapted from a book entitled "The Big Clock," which had previously been adapted into a 1948 feature film starring Ray Milland and Charles Laughton.
Costner actually did many of his own stunts during the production, which included driving without his prescription glasses much to the dismay of the production's insurance company!
When movies are made, scenes are often
left on the cutting room floor.
Sometimes, there will be several versions
of a movie floating about on cable, tv or video etc. Other times, a Director may
release a special cut of the movie.