Max Fleischer made Superman fly—literally. Before his Superman cartoons, Superman was limited to running faster than a speeding locomotive and leaping tall buildings with a single bound. But animating a jumping character requires a lot of drawings, so Fleischer chose to make him fly, and the comic books imitated him.
After the cartoon rights reverted, DC Comics failed to renew the copyright. The Fleischer cartoons are now in the public domain, which is why many companies sell them on VHS and DVD.
But Superman’s trademarks are still owned by DC Comics. If you try to use the Fleischer Superman commercially, DC’s lawyers will use trademark law to come after you.
And the only person who can defeat a superhero is a lawyer.
You can get the Superman suit for Poser and DAZ's Michael 4 at Uzilite Super Hero.
And you can get the files for my Fleischer variation at ShareCG: Superman - Fleischer - for free Uzilite M4 Suit. They should be available in Renderosity's free section within a day.
TRADEMARK INFRINGEMENT versus PUBLIC DOMAIN
Superman, Superdad, and the Limits of a Trademark Parody Defense | TheTMCA.com