Ayer is the first to leave his mark on Jared Leto's Joker: there are urban gang-culture influences clearly distinguishable on the character's looks. The LA street culture is a sort of personal signature of Ayer.

And before I rush into dismissing it as inappropriate, I'll just wait and see how that plays out in this particular case.

Secondly, Jared Leto's Joker is a mix of Frank Miller's personal take on the villain, as reinvented in The Dark Knight Returns and in All-Star Batman and Robin.

Finally, there's no reason to doubt Leto's acting abilities: in all likelihood, he'll also leave a mark on the character. He'll make it memorable (fingers crossed)!

2. The new Joker could be a trendsetter

Well, in truth, that's not a fact "“ yet "“ but my best guess is Jared Leto's Joker has the power to set a new fashion trend.