According to Paul Marco, Edward D. Wood Jr. thought that Bela Lugosi's memory might not be very good, so for Lugosi's long speech, Wood had the prop man make cue cards. Lugosi, upset, insisted he didn't need cue cards and he would "memorize it." Wood still insisted on the cue cards, telling Lugosi, "We have to be safe." Lugosi went to Marco for help. He had Marco promise not to show him the cue cards during the scene. Marco held the cards at his side the whole time and Lugosi never looked over once. After Lugosi's performance the whole crew got up and applauded.
Despite the film's poor reputation, Bela Lugosi fans tend to like it. It casts him in a substantial role, offers him memorable lines, and Lugosi gives a surprisingly energetic performance for his age.
Producer Donald E. McCoy strongly disagreed with the use of nuclear warheads. He only agreed to finance the film if Edward D. Wood Jr. rewrote his original script, and made it end with a nuclear explosion as a warning against the use of nuclear weapons.
William 'Billy' Benedict: The film includes a scene between Kelton the Cop and a newspaper seller. The latter is played one of "The Bowery Boys."
Edward D. Wood Jr.: [angora] Lobo's apparent fetish with angora wool is a reflection of Wood's own fetish with the material.