50s/60s science fiction I've seen so far

I’ve found that I’m having trouble keeping track of science fiction-ish movies from the 50s (I’ve included the 60s as well, for now) I’ve seen as so many have similar names/plots so this list is my way to keep track of them (well, the ones that are on this site, anyway.) The list is currently incomplete.
These films don’t seem to have MUBI pages:
Fire Maidens of Outer Space
Invasion of the Saucer Men