Lack of character development

Rating: 5/10 (9 July 2018)

Would have liked to have seen better character development, especially the bad guys.
Joker was a horrible rendition. Not so much Leto's fault, just bad idea from writer.
Tried too hard to modernize and use street level criminal characters to try and infuse complex character plots, which just didn't fit, and wasn't believable.
Could have been so much more. But it just got lost in corny dialog.