Not a bad idea for a film. Something could have been made of it, but this one comes up short. It drags badly in places, especially Hal Holbrook's far-too-long explanation to the three astronauts about why they must fake the Mars shot. There's also an odd flatness and a dullness to much of the dialogue, as though no one, including the director, could really be bothered to interject some energy; the score doesn't help. And the ending, besides being a cop-out, is just plain silly. It isn't a terrible film, but why does getting up and going to the bathroom or for a drink in the middle of the film seem like such a wonderful idea? A bit disappointing, overall.