In preparing for his role, Gillis asked to be allowed to fly down to Illinois to interview the man his character was based on in jail. His request was denied.
Water Power is the most infamous hardcore movie ever made due to its graphic (and very real) depictions of enemas being administered to bound women. Although all of the actresses who appear in the film gave their consent to be given enemas, due to current laws which govern explicit sex in films, Water Power is illegal on the grounds that it depicts un-consensual sex scenes.
Shaun Costello has recently received much critical acclaim for this film and it has been called his best feature. Costello is also known for the films Dracula Exotica (1980), Fiona On Fire (1977), Midnight Desires (1975), and Forced Entry (1971, his directorial debut).
Costello claims that Taxi Driver (film) was his main inspiration for the film and although Water Power does contain similar elements to the 1976 film, it remains a fiercely original and fascinating example of great and important American filmmaking.