The alien, "Dos", was played by a 12 year-old Australian ballerina in a rubber suit.
The first original film ever produced for the Sci-Fi Channel.
Writer Bryce Zabel would later become co-creator of the 1996 TV series Dark Skies, also dealing with UFO conspiracy theories. The series bible and pitch documents reveals that part of the plans for later seasons was to take elements of Official Denial and work them into the series. Dark Skies though was canceled in 1997 before those plans could be enacted.
The original title was "Progenitor."