- This film was originally shot with the bad guys conducting the germ warfare experiments as Nazis (which is why many of the characters have German names). However, producer 'Howard Hughes' evidently had a change of heart and decided that Communists were more of a menace than crazed Nazi scientists (and it was also the heart of the McCarthy "Red Scare" era) and ordered extensive re-shooting, with the villains now becoming former Nazis but current Communists.
- In keeping with the original Nazis-as-villains idea, the hero originally saw Adolf Hitler himself standing on the balcony of the villain's lair. He disappeared when the extensive re-shooting was done. Hitler was played once again by Bobby Watson.
Please support TCMDB by adding to this information.Click here to contribute