Remarkably prescient, this 1969 drama about astronauts stuck in space, unable to return home due to a rocket malfunction preceded the real Apollo 13 drama by only one year. For its era, the special effects are impressive, though the plot -- which involves a massive rescue attempt that sees not one but two spacecraft attempting to rendezvous with our heros -- is on the far-fetched side. Kudos for impressive realism in its treatment of the effects of the lack of oxygen on the crew and its long periods of quiet frustration, a great respite from typical in-your-face adventure fare.