Ummm stand alone yes but otherwise not true to story

Rating: 6/10 (9 October 2019)

Well without getting too detailed. In the comics, the joker doesn't have an origin story, they did that on purpose because they wanted batman (who is supposed to be the world's greatest detective) to have a villain he couldn't predict because he was literally just insane. Batman could never be one step ahead of the Joker because the Joker was random chaos, he doesn't have a motive or reason like the other villains. In the dark knight movie. Joker spends time robbing banks and later on in the movie he just lights the money on fire. He was robbing the banks for fun and to attract attention and create chaos, he didnt even care for the money. That's Joker's personality, completely mysterious and unpredictable and Batman could never understand his psychology.
In this version, he has a full backstory and although he is crazy, you can kind of understand why he is crazy because of everything that happened to him, there is a reason to his craziness. His true identity also gets revealed when he shoots the host on national television. If he were to fight batman now, batman could immediately know Joker's life story from a simple Google search. Essentially they made Joker relatable and made you sympathize with him. Good for a stand alone movie, but kinda goes against what his character is supposed to be. This true form of chaos that can't be reasoned with.