
I say "almost" as in "test footage was completed". Click the link and you can see it, and hear animator Bob Clampett talking about it. Listen for the enthusiasm in the dude's voice.

Had the project been completed, animation might be totally different today -- and likely for the better.
But no. Because no one would believe that a guy might be on Mars having adventures, cartoon or no.
...
Jeez.
I'm gonna build a Time Machine, and I'm gonna paint noseart on it -- a pretty girl with her fists held up, a devillish grin and a wink to the viewer. And next to her, the craft's name in big, cursive letters:
"The Retroactive Asspunch Express".