Los invasores del abismo

While looking for locations in the Philippines, Ruggero asked his guides to take him to the same region where Francis Ford Coppola filmed Apocalypse Now (1979). Seeing that the place had been cleared for that filming, Deodato was forced to look for an area with virgin forest. In Deodato Holocaust (2019), the filmmaker stated: "Coppola had destroyed that jungle!".

All of the vehicle license plates read, "Florida - 1983", which is the year the film was made, not the year in which it is set (1994).

The German version (released under the title "Atlantis Inferno") is missing the entire opening credits sequence, and starts directly at the first scene with the kidnapping. Before the movie is a blue screen with the title, and credits for Ruggerro Deodato, Christopher Connelly (I), Tony King, Ivan Rassimov and Mike Miller. No one else from the opening credits sequence is credited anywhere in the movie. The end credits are also taken straight from the original Italian version, and are still in Italian. Also, several cuts are made to the more gory sequences, including the deaths of Frank, Liza and Barbara, and the decapitation of the motorcycle raiders. All of the other death scenes remain intact. There are also many dialog changes, with extra lines added (in German) in numerous scenes. The echoing screams of the raiders when they are killed have also entirely been replaced with normal, non-echoing cries from German voice-over artists. Additionally, during the platform sequences, an echo has been added to lines of dialog spoken by characters into microphones, which is not present in any other version worldwide.

Featured in 42nd Street Forever, Volume 1 (2005)