a fine b movie cast be waste by use awful production value in a project that likely run out of money before it be finish . the tack on end without a doubt use different actor than the on screen talent ( grant williams and mala power and denny miller and bobby van ) . probably the bad special effect be the destruction of the earth . the doomsday machine get a 3 from me because it be at least always coherent . it sad whatever happen during production prevent the movie from be film a intend . i feel especially bad for grant williams and a fine actor and who be likely blacklist because of his sexual preference and not to mention a well publicize feud with jack webb and then director of production for universal . good william be remember for the shrinking man and hawaiian eye than this crap . ditto and mala power for the time traveler .