The word "zombie" is never used. They are called "things" or "Returners" - as in Cemetery Man (1994).
The Adriene character is named after John Carpenter's ex-wife and muse in the early eighties Adrienne Barbeau.
Shot in 22 days with another one for pickup shots only.
Officer's file sheets reads the surnames of filmmakers Richard Stanley, Lucio Fulci, George A. Romero and Stephen King as the address names of the police headquarter, the Precinct 13.
The film features 81 visual effect shots.