Actor John Savage, chosen to play the lead because the production wanted a famous main actor, found himself quarreling with Lucio Fulci frequently during the shoot. Fulci himself later declared that it got so bad that both he and the producer Joe D'Amato almost hit him.
Lucio Fulci was peeved that the film went out credited to H. Simon Kittay. When asked about it in an interview, producer Joe D'Amato explained that "Just before Le porte del silenzio (1991), Fulci had made a couple of bad movies which didn't do too well in foreign territories, so we thought it was better to use the other name from a sales point of view." During an interview, Fulci blamed the changing of his name on "a woman with shitty breath, a despicable being called Lucaroni. She told Aristide that 'in this moment Fulci isn't fashionable... let's call him Simon Kittay.' Even the Japanese asked me to explain about this matter. She isn't working for Massaccesi anymore, hah!"
After Lucio Fulci returned to Rome and turned in his cut, producer Joe D'Amato watched it and felt that many scenes were too static compared to what was written in the script, so he went back to Louisiana where the film was made and shot a small amount of footage to improve the film's pace and changed the soundtrack. When Fulci saw the new cut, he wasn't too pleased with the alterations D'Amato had made to the film and its soundtrack.
Following the completion of Voices from Beyond (1991), director Lucio Fulci was approached by producer Joe D'Amato who read the short story "Porte del nulla" Fulci wrote, and suggested to adapt the story into Le porte del silenzio (1991). Fulci recalled that D'Amato encouraged him to go to New Oreleans and to bring his daughter with him to assist on the film and save money on production. Fulci recalled that on arrival, none of his equipment worked.