<Li> Russell Johnson as Intelligence Officer </Li> <Li> Sal Schillizzi as Locksmith </Li> <P> Three Days of the Condor was filmed in various locations in New York City, New Jersey, and Washington DC, including the World Trade Center, 55 East 77th Street, NYC, The Ansonia, Central Park, and the National Mall . </P> <P> The main point of variance from novel to film lies in the presentation of the CIA . In Grady's book, a rogue element within the Agency is motivated by drug - running greed . In the film, the same individuals act with equal ruthlessness to hide a project intended to protect long - term national interests . </P>

Where was three days of the condor filmed