Rosenthal recorded a DVD commentary for
Superman IV: The Quest for Peace for the
Deluxe Edition of the film in 2006. He discussed the film's original intentions and deleted scenes. Rosenthal has also described the final film as production company
Cannon Films stabbing star
Christopher Reeve in the back. According to Rosenthal, Reeve and director
Sidney J. Furie begged Cannon Films to film a sequence in
New York City, in front of the real
United Nations Building, because filmgoers were very familiar with that location, but the
Milton Keynes setting looked more like a municipal auditorium. However, Cannon refused because they were "pinching pennies at every step". Rosenthal also revealed that he and writer
Lawrence Konner wanted Reeve to play Nuclear Man as well as his dual roles of
Superman and
Clark Kent in the film. They imagined the villain being a darker version of the hero in the cloning process. The effect would have been costly to achieve and the idea had already been explored in
Superman III. Therefore, Cannon hired actor
Mark Pillow for the part of Nuclear Man. Also according to Rosenthal, there are approximately 45 minutes of the film that have not been seen by the public after they were deleted, following a failed
Southern California test screening. == Filmography ==