So you're saying there have been comics and films where he's been the antagonist to an heroic protagonist but never a film where he's been the protagonist himself? I agree.
Look, I don't mean to sound like a dick. But this whole "doesn't seem like a joker" thing is kinda getting repetitive and it's also kinda dumb. What do people expect, a film about a villain just being a villain for 2 hours? Just a maniacal psychopath reaping destruction with no antagonist? Like a Rambo film? Think about it for second.
Of course the film about a villain will take a different approach to an action film where he's the antagonist to a hero. When you write a story focusing on the origins of a villain, it's gonna be a bit of a drama explaining the character's background and how he ended up where he did. It's expected villain character building 101, nothing new.
Doesn't seem like a Joker film/comic story/whatever because the Joker:
a)
always embraced madness (the "push")
via an accident (usually acid) or injury that left him scarred and-or deformed. His previous odd backstory (mean gangster, or failed comedian, or horrible childhood, etc.) is just the previous step to the "push", that signals the point of no return for him.
b) his high IQ was always oriented to
violent organized crime, bizarre plans, tons of guns, etc.
c)
hates humanity. The Joker only tolerates few henchmen because they are useful, but won't hesitate to kill them and replace them ad nauseam. The Joker is not about inspiring society to embrace anarchism or chaos. It's about killing the society with chaos.
This trailer only explains to me that a seriously depressed failed comedian is going insane and will eventually trigger a riot by influencing similarly depressed guys. Also blatant ripoff of V of Vendetta with the Clown Mask.
Don't mean to sound like a Joker's pseudo-expert or a dick. Just trying to express how odd/different this trailer looks to what I've been reading/seeing about the Joker for years.