I'm treading on some little used ground. From reading previous user comments, it seems that people give this movie a ten or a one (really?!). While this movie is, at times, a little confusing in the implications of time and space, it is still quite challenging and interesting. Earth is dying. Technology and war are blamed for the current conditions. Apparently, because of some serious dust, crops are slowly being destroyed. Also, the dust presents health hazards. The solution is to find a way to get people to a new place...or...to let the chips fall and send a few into space to inhabit a new planet or asteroid or moon or whatever, and start the whole thing over. A group of people who have maintained NASA (which is now seen as the deceivers of mankind) are building ships to explore the possibilities. The problem has to do with a limited time to manage this because of the laws of relativity. I thought it sort of devolved in a kind of sentimental mess, but the presentation of the problem is worth a viewing. There is some preachiness here which I find a bit hard to take, and a couple stated lessons that an eighth grader would know, let alone these experts. But it did keep my interest. One short criticism: It is way too long.