It's definitely a departure from the Super-science or war-time versions. A skinny crook is doubling Superman and stealing things, so Superman gets the blame for the robberies. His boss is a very Edward G. Robinson looking character who receives all of the items he steals. When Superman is going after the pseudo-Superman up on a rooftop, the way he moves reminds me of the giant robots from the movie "Sky Captain And The World Of Tomorrow" (a really wonderful film worth seeing). If you take a look at the Superman cartoon "Mechanical Monsters" available on this website, you'll notice those same robots in it along with a somewhat similar story. I wonder if "Mechanical Monsters" was the inspiration for "Sky Captain And The World Of Tomorrow"?