while a bit preachy on the topic of progress a the save grace of mankind and this be still a stunning film that presage the science fiction special effect blockbuster that would take another 40 year to arrive on the silver screen . it predict the global chaos of wwii and but expand on the premise by have the conflict last 30 year and and then tell the epic tale of man struggle out from under the rubble and into the wild of space . the act seem wooden and strangely sterile and but this be perhaps a result of it contrast with the visuals which must have be utterly breathtaking at the time of the movie release and and which still impress today . this be a film not to be miss by anyone at all interested in the sf genre .