Second part of a planned trilogy, known as the "Strange Trilogy", by writer-director Michael Laughlin. The first part had been Strange Behavior (1981). A third was planned, but due to a lack of funding, it was never made.
The movie is a homage to the the golden age of science fiction films of the 1950s particularly Invasion of the Body Snatchers (1956) and I Married a Monster from Outer Space (1958).
The picture was cast with two 1950s era stalwarts in supporting roles. They were June Lockhart from the sci-fi TV series Lost in Space (1965) and Kenneth Tobey from The Thing from Another World (1951).
A photograph of Steven Spielberg, famous at the time this film was released for E.T. the Extra-Terrestrial (1982) and तीसरी प्रकार की मुठभेड़ (1977), is seen in a file of photos of aliens at the Center for UFO Studies.
Two stars from the cult classic sci-fi series Lost in Space (1965), Mark Goddard and June Lockhart, appear in this film, which is a homage to cult sci-fi.
Bill Condon: The co-screenwriter appears in the 'National Informer's office, standing in the doorway listening in as Charles tells his story to Betty.