I'm just starting getting into writing a, get this, bridge between the DC Universe (DCEU?) and the Marvel Universe (FOX and Sony but not MCU), and takes place inside The Matrix, plus a tiny bit of inspiration from Sonic, Avatar, Mr. & Mrs. Smith, Oceans 11, and some others in there too.
The actual idea came out of an independently produced comic series (and company) written in a small German studio apartment in 2010 and has evolved into the monster it's become ever since. The original 3 comics were a Batman trilogy, with the third one "Batman: Black Mask" where the character of Black Mask evolves into someone named Dr. Kill.
Most major characters are made up (OC) but are fairly fleshed-out and (mostly) original.
The main, titular, character is an old billionaire named Dr. Kill (originally Black Mask) who is actually based on Mr. Burns from The Simpsons (he even has an assistant named Smithies (not Smithers)). He employs assassins to do his bidding, mostly just heists to steal the things he needs to complete his experiments even though he is a billionaire, but some of that stuff is inherently illegal.
Another major character is Deadpool, who works for Dr. Kill. He is much more serious than the comics versions and is an adversary of Batman somehow. Also, he turns out to be Neo (from The Matrix).
This screenplay is based in part on the third Batman comic and has Batman face up against Deadpool, who opens a portal to another dimension that bridges the DC and Marvel Universe. Shit goes to hell by this point and opens up a chance for a whole film franchise.
One running gag is that New York is always getting completely demolished (even more intense than in the movies because it parodies the movies) and is always rebuilt in the next issue, to the point where it actually shows the construction workers rebuilding the city in later issues.
The comics themselves are rare because they're German, independent, and the original sources are not public domain.
