High rating for old B&W sci-fi fans. Looks like good acting and great props without professional writers and shot in record time. Twists and turns in the plot are totally flat-lined, but the science (fiction) is still good and the product much better than what you'd expect from what I just said (except how the interesting story with twists and turns was so flat-lined in its implementation). So if you want an old room-sized computer named S.U.S.I.E. and three stage rocketry, its worth the low price this movie usually sells for (including the two movie version with Kronos).