Narrow Margin is a 1990 film directed by Peter Hyams and released by TriStar Pictures, loosely based on the 1952 film noir, The Narrow Margin.
A Los Angeles District Attorney (Gene Hackman) is attempting to take an unwilling murder witness (Anne Archer) back to the United States from Canada to testify against a top-level mob boss. Frantically attempting to escape two deadly hit men sent to silence her, they board a Vancouver-bound train only to find the killers are on board with them. For the next 20 hours, as the train hurls through the beautiful but isolated Canadian wilderness, a deadly game of cat and mouse ensues in which their ability to tell friend from foe is a matter of life and death.
As with Elliott Gould's character in Capricorn One, Gene Hackman's "Robert Caulfield" is named after Peter Hyams' old boss from his days as working as a TV reporter.
Hyams was intentionally looking through old movies that might be classics, only not too famous, to rewrite and remake as a modern...