Sci-fi is a rapidly changing genre. It loses impact even more rapidly than horror. Therefore it's virtually impossible to see a sci-fi movie from the past (from the pre-space period, i.e. late 50s) that isn't laughable in some sense. First serious sci-fi epics appeared in the very early 50s, and bearing in mind the first space yarn was filmed by Melies in 1902, we get about 50 ...