Re: The mob - make it more intimidating
If WB plots out a longer Batman series, say 7 films like Harry Potter, the Mob should get a stronger representation. They can use the Mob to transition the audience into more science fantasy villains like Freeze, Ivy, and Clayface while blending the Mob with more classic villains like Penguin, Black Mask, Riddler etc.
Also, consider that Bruce had been training with an elite group of ninjas for however long. Its not as if he was going against the mob with the sort of inexperience he had in Year One (comic).
"I defeated your uncle Victarion and his Iron Fleet off Fair Isle, the first time your father crowned himself. I held Storm's End against the power of the Reach for a year, and took Dragonstone from the Targaryens. I smashed Mance Rayder at the Wall, though he had twenty times my numbers. Tell me, turncloak, what battles has the Bastard of Bolton ever won that I should fear him?" - Stannis Baratheon