I figure I saw this gem when I was about 11, back when I lived in Queens NY.
My memories are similar to the other notations on this flic, except that I was too young to form an opinion about its artistic merits. My real memory was the term blood rust, and the memory of a scene where detectives were finding it in a boxcar. (Ok, its possible I mixed that one up with a scene from "Them". I remembered it as the b part running with This Island Earth, but it may well have been playing with the Fly, as others indicated. The long and this short of it was that this one bugged me, as I could until recently find no movies referenced to "blood Rust". None of the printed compendiums of Sci-Fi movies helped. A recent call for help on another web site finally gave me the Space Master title, which did the trick! A 45 year mystery solved!
Now I need to find a copy!
