Who really is the Joker and why we don't need his origin movie

Joker' Sequel Confirmed With Joaquin Phoenix, But Not Batman – IndieWire

The System's Broken' And 'Joker' Director Aimed To Explore That On Screen : NPR

They may not be in the same universe (which I think works because both focus on competency different things at the end of the day) there's a nice parallel between Pattinson Batman

The Dark Knight Got Studio Pushback for Not Including Joker Backstory – IndieWire

Joker's Backstory: A Guide to the Joker's Origin Stories

The Dark And Twisted History Of The Joker — CultureSlate

How The Dark Knight Changes Joker's Origin With Makeup

Joker (character) - Wikipedia

The Joker (The Dark Knight), Batman Wiki

The Comic That Explains Where 'Joker' Went Wrong - The Atlantic

Who Is The Joker Based On? A Look At His Evolution

What Makes “Joker” An Important Film For Our Times — Sydney Yaeko

Joker: The Actors Who Have Played the Clown Prince of Crime in the Movies