The shot of the aircraft carrier coming into San Francisco Bay at the beginning of the movie was completely unplanned. The entire crew were at the time on the Presidio's parade field, along with hundreds of off duty soldier, filming a staged parade. When director Hyams saw the fleet coming in, he stopped filming of the parade to get a shot of the ships going past. In the final cut of the movie only a few seconds of the parade are shown at the beginning, and the rest of the day's shoot was left on the proverbial cutting room floor.
Originally meant to star Sir Sean Connery and Don Johnson, but Johnson had to drop out due to scheduling conflicts with Miami Vice. Mark Harmon was brought in as a last-minute replacement.
Was set to go into production in 1986 with Lee Marvin and Jeff Bridges starring, but Marvin fell ill and died the same year. Gene Hackman was approached to replace Marvin, but turned it down. When Bridges left the project, the film was put on hold.