This film shows the tedious process in 1965 of what was required in tracing a telephone call on actual central office equipment that was state of the art such as number 5 cross bar and step-by-step electro/mechanical equipment. It was filmed in central offices of the old Northwest Bell Telephone company which as of 2010 is now Century Link. Modern telephone switching equipment can trace a call in less than a minute or even 30 seconds.
Mark Dyson:
Do you think that not getting caught in a lie is the same as telling the truth?
During the opening titles, in the opening scene where the camera zooms from an aerial shot onto Anne Bancroft, The fountain in the film is played backwards. The water flows up from the bottom of the fountain up to the top and back down into where the water spout appears from. After the aerial shot scene change, the water then runs in the correct direction.
English