 An office scene was shot in the World Trade Center. In 1986, all  that was required to gain entrance to every area of the buildings  was a phone call, a letter (there was no email), or placing ones  name on a list. Company vehicles, including large equipment trucks,  were allowed to enter the underground loading areas. Crew members  were allowed to enter underground service areas where things like  lights, electricity and air conditioning were controlled. The  working atmosphere was efficient and professional, but also very  friendly and helpful. There was not one person from top to bottom  who was not willing to take the time to help solve a problem. Even  house electricians hired because of Union rules, men who had no work  responsibilities other than to stand and watch, pitched in.