April 2020 Update:
Here's a blast from the past!
Finally available publicly, here's my entry into the "LEGO DC Super Heroes Video Contest" that Lego hosted back in 2012.
This film eventually ended up on the Direct-to-DVD release "Lego Batman: The Movie - DC Super Heroes Unite" as a special feature. https://www.imdb.com/title/tt2465238/
I didn't think I could release it publicly myself, but Penta pointed out that all the other winners did, so I should be fine.