The issue with Joker is that it wears it's influences on its sleeve, and they're too hard to look past. If you're unfamiliar with movies like Taxi Driver and King of Comedy, Joker is going to seem absolutely groundbreaking and in this world of superhero reboots a breath of fresh air. But if you know anything about gritty 70s/80s Scorsese-style street dramas, it's old hat. There's nothing new here. And the Batman lore just kinda feels tacked on as an after thought (which I'm assuming, was very much the point).